Whether you're a business road warrior logging 100,000 miles a year, a budget-conscious family of four hunting for the cheapest fare, or a first-time flyer just trying to get from A to B without losing your luggage — choosing the right airline can make or break your trip. The US domestic aviation market is one of the most competitive in the world, with more than a dozen carriers fighting for your loyalty, your wallet, and your satisfaction at 35,000 feet.
But which ones actually deserve your business?
In this guide, we break down the best airlines in the US for 2026 across every major category: reliability, comfort, loyalty programs, budget options, and premium experiences. We've pulled data from the Wall Street Journal's annual rankings, WalletHub's 2026 study, AirHelp scores, the Points Guy's analysis, and NerdWallet's loyalty program evaluations — so you don't have to.
Let's get into it.
How We Evaluated the Best US Airlines
Ranking airlines is never a simple task — a carrier that's perfect for a solo business traveler might be a nightmare for a family flying with car seats and strollers. To make this guide as useful as possible, we evaluated each airline across multiple dimensions:
- On-time performance — arrival and departure delay rates
- Cancellation rates — how often flights are scrapped, especially due to controllable causes
- Baggage handling — mishandled and lost bag rates per 1,000 passengers
- Customer complaints — filings with the US Department of Transportation
- Seat comfort & amenities — legroom (seat pitch), in-flight entertainment, Wi-Fi availability
- Loyalty program value — ease of earning and redeeming points/miles
- Affordability & fees — ticket prices, checked bag fees, change fees, seat selection costs
- Route network — domestic reach and international connectivity
- Safety record — safety scores and incident history
Our primary sources include the Wall Street Journal's 2025 Airline Rankings (published January 2026), WalletHub's Best US Airlines 2026 study, AirHelp's 2025 Global Airline Rankings, and The Points Guy's 2025 Best US Airlines analysis. Where rankings differ, we explain why and help you figure out which framework matters most for your travel style.
Quick Comparison: Best Airlines at a Glance
| Airline | Best For | WSJ 2025 Rank | WalletHub 2026 | Avg. Seat Pitch |
|---|---|---|---|---|
| Southwest | Overall value & reliability | #1 | #5 | 32–33 in |
| Allegiant | Budget + no cancellations | #2 | #6 | 30 in |
| Delta | Premium experience | #3 | #4 | 30–32 in |
| Alaska/Hawaiian | West Coast + Pacific | #4 | #3 (Hawaiian) | 31–32 in |
| JetBlue | Comfort per dollar | #5 | #7 | 34 in |
| United | International network | #8 | #8 | 30–31 in |
| Spirit | Cheapest fares + reliability | #9 | #1 | 28 in |
| American | Large domestic network | #10 | #9 | 30–31 in |
Best Overall Airline: Southwest Airlines
The verdict: The most well-rounded airline for the average American traveler.
Southwest Airlines did something remarkable in 2025 — it dethroned Delta after a four-year reign atop the Wall Street Journal's annual rankings. According to the WSJ's methodology, which weighs reliability, baggage handling, complaint rates, and cancellations, Southwest came out ahead because it recorded the fewest customer complaints and tarmac delays of any major carrier that year, while ranking second in both on-time arrivals and cancellation rates.
Why Southwest Stands Out
The no-fees model (mostly): For years, Southwest was the last major US airline to offer two free checked bags, no change fees, and no seat selection charges. That model has evolved somewhat — the airline launched checked bag fees in early 2025 and tightened some of its most customer-friendly policies — but it still offers significantly fewer ancillary fees than most competitors.
Rapid Rewards loyalty program: Southwest's Rapid Rewards program earns 6 points per $1 spent on standard economy fares — higher than most legacy carriers. The program recently expanded to include a co-branded debit card (not just credit), opening it up to customers who prefer not to carry credit cards.
Operational efficiency: Southwest operates a single aircraft type (the Boeing 737 family), which simplifies maintenance, crew training, and parts inventory. This consistency pays off in fewer operational disruptions.
Open seating (with a twist): Southwest famously doesn't assign seats — you board in a group (A, B, or C) and pick your own. The airline has been piloting assigned seating and a new premium cabin section, signaling a significant shift in how it positions itself going forward.
Where Southwest Falls Short
- Seat pitch (32–33 inches) is decent but not exceptional
- No transatlantic or transpacific routes — you'll need a partner for international travel
- The new checked baggage fees have eroded some of its value advantage
- No traditional first class or lie-flat seats on any route
Best for: Domestic travelers who value simplicity, reliability, and a low total cost of flying. Especially strong for budget-conscious travelers who frequently check bags.
Best for Premium & Business Travel: Delta Air Lines
The verdict: The gold standard for premium domestic and international travel in the United States.
Despite slipping from its four-year reign to third place in the WSJ's 2025 rankings (partly due to the massive IT outage in summer 2024), Delta Air Lines remains the airline most industry observers point to when asked about the best overall experience in US aviation. In AirHelp's 2025 global ranking, Delta was ranked 15th worldwide and third among US carriers, with an overall score of 7.46.
The Delta One Experience
For long-haul and international travelers, Delta One is a genuine competitor with the best business class products in the world. Key features include:
- 180-degree lie-flat seats on all long-haul international flights
- Delta One Suites with full-height sliding doors for maximum privacy on Airbus A350 and A330-900neo aircraft
- Missoni-designed bedding including an oversized duvet, sleeping pillow, and a lumbar pillow that doubles as a mattress pad
- Chef-curated multi-course dining with sommelier-selected wines
- Grown Alchemist amenity kits in the signature Missoni zigzag design
- Delta One Lounges at JFK, BOS, LAX, and SEA — separate from the regular Sky Club and designed exclusively for Delta One passengers and top-tier Delta 360 members
Delta is currently expanding its Delta One Lounge network aggressively. The airline expects to have 56 Delta Sky Clubs with a combined 700,000 square feet of lounge space by mid-2026, including a new 11,000-square-foot flagship lounge in Seattle with an open-air terrace overlooking Mt. Rainier.
The airline is also receiving new Airbus A350-1000 aircraft in 2026, which will serve as the new long-haul flagship with enhanced Delta One Suites. Meanwhile, older A330-200 and A330-300 jets are undergoing cabin retrofits.
SkyMiles: Powerful but Complicated
Delta's SkyMiles program has faced criticism for devaluations in recent years. NerdWallet's most recent analysis values SkyMiles at a lower redemption rate than competing programs from Alaska/Hawaiian (Atmos Rewards) and JetBlue (TrueBlue). However, the program has real strengths: it integrates deeply with the American Express ecosystem, offers co-branded cards at multiple tiers, and Delta's elite status (Medallion) comes with complimentary upgrades and Sky Club access on domestic routes.
Watch Out For in 2026
Delta is introducing entry-level "Basic" premium cabin fares in 2026 — essentially a business and first class version of basic economy, with the same physical seat but restricted benefits like limited seat selection flexibility, lower mileage accrual, and tighter change/cancellation rules. This follows the 2025 launch of "Comfort Basic" in its economy-plus cabin. For travelers used to paying for Delta premium and getting everything included, it's worth reading the fare rules carefully before booking.
Best for: Business travelers, frequent flyers who value lounge access and upgrades, and leisure travelers on transatlantic or transpacific routes where the Delta One Suite truly shines.
Best for International Connectivity: United Airlines
The verdict: The best choice if you fly internationally often — no US carrier comes close to United's global network.
United Airlines placed eighth in the WSJ's 2025 rankings, which is fair given its historical struggles with on-time performance and customer service scores. However, in The Points Guy's 2025 rankings, United climbed to second place thanks to significant improvements in reliability and passenger experience, and its unmatched international reach.
Why United Wins for International Travel
United is a founding member of Star Alliance, the world's largest airline alliance, with 36 member carriers covering over 1,300 destinations in 195 countries. No other US carrier offers comparable global connectivity. Through Star Alliance, United flyers get reciprocal benefits — lounge access, mileage earning, and sometimes upgrades — on partners including Lufthansa, Singapore Airlines, ANA, Air Canada, and many more.
MileagePlus, United's loyalty program, consistently earns praise as one of the most flexible US airline programs for international award redemptions. The ability to book partner airlines' first and business class seats — including coveted products on ANA, Lufthansa, and Singapore Airlines — at rates that can be extremely competitive makes MileagePlus a favorite of the travel hacking community.
In the first quarter of 2026, United's loyalty program revenue rose 13% year over year, signaling strong customer engagement.
The Blue Sky Partnership with JetBlue
One of the biggest developments in US aviation loyalty in recent memory is the Blue Sky partnership between United and JetBlue, which launched in phases starting October 2025. As of early 2026:
- TrueBlue members can earn and redeem points on United flights, and vice versa
- Customers can book JetBlue flights directly on United's website (and United flights on JetBlue's site)
- Reciprocal elite benefits are now live: United Premier elites get JetBlue's EvenMore extra-legroom seats; JetBlue Mosaic members get United's Economy Plus rows
This partnership effectively gives United a stronger leisure/vacation network (JetBlue is strong in Caribbean, Florida, and East Coast routes) while giving JetBlue access to United's global network — a win for both sets of loyalty members.
Best for: Frequent international travelers, business travelers who accumulate miles and want maximum award redemption flexibility, and anyone based at United hubs (Chicago O'Hare, Newark, Houston, Denver, San Francisco, Washington Dulles, Los Angeles).
Best for Comfort on a Budget: JetBlue Airways
The verdict: More legroom than anyone else in economy. A genuinely distinctive product that punches above its price.
JetBlue has always positioned itself as the carrier that refuses to choose between affordable and comfortable — and for the most part, it delivers. The airline consistently wins WalletHub's "Most Comfortable Airline" category, alongside Hawaiian and American, largely because of its 34-inch seat pitch in standard economy — more than any other major US carrier.
What Makes JetBlue Different
Even More Space seats: JetBlue's premium economy-equivalent product offers up to 38 inches of pitch, adjustable headrests, and early boarding. It's a cost-effective upgrade on many routes compared to other carriers' full first class fares.
Mint (Business Class): On transatlantic routes and select transcontinental routes (like New York–Los Angeles and New York–San Francisco), JetBlue's Mint cabin is genuinely special. It features fully lie-flat suites with direct aisle access, Tuft & Needle mattresses, custom Wanderlust kit amenity bags, and multi-course dining with tapas-style snacking. Mint is often significantly cheaper than Delta One or United Polaris on the same routes — making it a favorite of savvy premium travelers.
Free Wi-Fi: JetBlue offers free Wi-Fi on most flights through its Fly-Fi system, which uses ViaSat satellite technology. While speeds can vary, the fact that it's complimentary on virtually all flights gives it a meaningful advantage over carriers that charge $8–$30 per flight.
TrueBlue loyalty program: TrueBlue earns 6 points per $1 on standard economy fares, tied with Southwest for the highest earning rate among major US carriers. Points don't expire, and the program recently integrated with United's MileagePlus through the Blue Sky partnership, dramatically expanding redemption options.
JetBlue's Weaknesses
JetBlue's reliability scores are a known weakness — the carrier has historically ranked lower than Delta and Southwest for on-time arrivals and cancellation rates, particularly out of congested northeastern airports like JFK and BOS. However, the collapse of Spirit Airlines has actually helped JetBlue in 2025–2026, as it gained access to more gate availability and pricing leverage at former Spirit hubs.
Best for: East Coast and transcontinental travelers who prioritize seat comfort, free Wi-Fi, and value-oriented business class. Families and leisure travelers who want more legroom without paying full first-class prices.
Best for West Coast & Pacific Routes: Alaska and Hawaiian Airlines
The verdict: Two strong regional carriers that merged their loyalty programs — and created something genuinely impressive.
Alaska Airlines and Hawaiian Airlines formally merged in 2024, and in 2025 they launched Atmos Rewards, a unified loyalty program that covers both carriers' networks. The combined entity now serves over 1,000 destinations worldwide through a network that includes both carriers' routes plus more than 30 global airline partners through the oneworld alliance.
Atmos Rewards: The Industry's Most Flexible Loyalty Program
NerdWallet consistently ranks Atmos Rewards as the best value airline loyalty program in the US. Why? Two key reasons:
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Distance-based earning: Unlike the major carriers that have shifted to revenue-based earning (where you earn miles based on dollars spent, rewarding high spenders), Atmos Rewards still primarily bases earning on miles flown — a significant advantage for travelers who find cheap fares on long routes.
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Accessible elite status: Alaska simplified its Medallion status tiers in 2025, making elite status easier to achieve and more rewarding at every level. Perks include complimentary upgrades, free Starlink Wi-Fi on equipped aircraft, and milestone rewards starting at 10,000 status points.
Starting in 2026, Atmos Rewards introduces "choice earn" — a first in the global airline industry — where members can select how they earn points for the entire year: distance flown, dollars spent, or segments taken. This is genuinely innovative and gives frequent flyers the ability to optimize based on their travel style.
NerdWallet values Atmos Rewards points at 1.2 cents each, higher than Delta SkyMiles and United MileagePlus.
Hawaiian Airlines Specifics
WalletHub's 2026 rankings place Hawaiian Airlines in the top three for most comfortable airline, alongside JetBlue, and near the top for overall experience. The carrier excels on Hawaii inter-island routes and trans-Pacific flights to Japan, South Korea, Australia, and New Zealand. Its on-time performance on Hawaii routes is among the best in the industry, and its Neighbor Island flights have a distinctive warmth and attentiveness in service that passengers consistently rate highly.
Best for: Pacific Northwest travelers, Hawaii-bound leisure travelers, and frequent flyers who want a strong, underrated loyalty program with genuine flexibility.
Best Budget Airline: Allegiant Air
The verdict: Surprisingly strong operational performance — and the lowest cancellation rate in the US.
Allegiant Air may not be a household name in the same way Delta or United are, but it placed second in the WSJ's 2025 annual rankings, behind only Southwest. Its secret? Almost perfect completion rates.
In 2025, Allegiant posted a 99.89% controllable completion rate — the best in the industry when removing weather and air traffic control factors. It also ranked first in the US for fewest bag mishandlings and did not involuntarily bump a single passenger in 2025. That's a remarkable operational record.
Allegiant's model is built around flying directly between smaller cities and leisure destinations — it skips the big hubs and flies point-to-point between secondary airports. This means less exposure to the hub congestion that plagues larger carriers, which partly explains its reliability.
The trade-off: Allegiant's network is limited, its base fares are ultra-low but unbundled (you pay for everything including carry-on bags and seat selection), and its in-flight experience is bare-bones. If your route is covered, though, the combination of low fares and reliable operations makes it worth considering.
Best for: Leisure travelers flying between smaller markets who value reliability and the lowest possible base fare. Not suitable for business travel or frequent connections.
Best Ultra-Low-Cost Carrier: Spirit Airlines
The verdict: Surprising operational leader in 2026 — but the experience still isn't for everyone.
Spirit Airlines topped WalletHub's Best Overall US Airline ranking for 2026. Yes, really. Before you click away, let's understand what that means.
WalletHub's ranking evaluates airlines across 16 metrics including cancellation rates, delay rates, mishandled baggage, safety scores, and affordability — but importantly, it does not factor in fees, comfort, or overall passenger satisfaction. Spirit ranked first primarily because of its extraordinary operational statistics: the lowest combined rates of cancellations, delays, mishandled baggage, and involuntary denied boarding among major US carriers.
Spirit's fares are often the lowest in the market — sometimes dramatically so. The catch is that the airline charges for almost everything else: carry-on bags, checked bags, seat selection, and even printing your boarding pass at the airport. When you add it all up, Spirit's total cost is often comparable to or higher than a competitor's all-in fare for a similar route.
The in-flight experience is deliberately spartan — tight seats with no recline (28-inch pitch), no in-flight entertainment screens, and no complimentary drinks. For short hops of 1–2 hours where you don't check a bag and don't care about the experience, Spirit can be genuinely excellent value. For anything else, it's harder to recommend.
That said, the improvement in Spirit's operational performance over the past two years is real and notable. Following a period of significant financial distress and operational chaos, the carrier appears to have stabilized and is running a tight ship.
Best for: Ultra price-sensitive travelers on short routes who pack light and don't need any frills. Budget travelers who know exactly what fees to expect and plan accordingly.
Best for Domestic Reliability: Frontier Airlines
The verdict: Low prices and acceptable reliability — but the fee structure is a landmine for the unprepared.
Frontier Airlines occupies a similar space to Spirit in the ultra-low-cost category. In AirHelp's 2025 global ranking, Frontier appeared at 36th globally with an AirHelp Score of 7.07 — respectable for its tier.
WalletHub ranks Frontier near the middle of US carriers. It performs well on affordability and safety metrics but drops when comfort and overall experience are factored in. Like Spirit, Frontier charges for carry-on bags, checked bags, and seat selection — and its fees can be steep for customers who don't pay carefully attention at checkout.
Frontier has expanded its route network significantly in recent years, now serving over 100 destinations across the US, Caribbean, and Latin America. Its aircraft (an all-Airbus A320 family fleet) are modern and clean, with better environmental efficiency than some older fleets at competing carriers.
Best for: Price-sensitive travelers who don't need to check bags and are comfortable navigating a fee-heavy booking process.
American Airlines: A Solid Middle-Ground Option
The verdict: The largest airline in the world by fleet size — but not always the best.
American Airlines is a complex story. In AirHelp's 2025 global rankings, it placed 11th in the world (best among US carriers at 7.64 points) and first among domestic carriers. Yet in the WSJ's 2025 rankings, it placed 10th out of 10 major carriers.
How can both be true? Different metrics. AirHelp weighs claim handling, passenger rights compliance, and overall score — categories where American performs well due to its size and robust customer service infrastructure. The WSJ, on the other hand, weighs operational metrics like cancellations, delays, and complaints — categories where American has historically struggled, particularly with baggage handling and tarmac delays.
What American does well:
- Massive domestic network: Over 350 destinations globally, with unmatched domestic coverage
- AAdvantage loyalty program: One of the largest loyalty programs in aviation, with strong credit card partnerships through Citi and Barclays
- Flagship Business Class: On long-haul international routes, American's Flagship Business class is competitive — fully flat seats, decent dining, and Flagship Lounges at key hubs
- Free Wi-Fi for AAdvantage members: American is joining Delta, United, and JetBlue in offering free internet browsing for loyalty members in 2026
Where American struggles:
- Reliability: Baggage handling and on-time performance scores lag behind top competitors
- In-flight entertainment: American is in the process of removing seatback screens on many aircraft in favor of streaming to personal devices — a divisive choice
- Premium cabin consistency: The experience can vary significantly depending on aircraft type and route
Best for: AAdvantage members accumulating towards status, travelers in American's major hub cities (Dallas/Fort Worth, Miami, Charlotte, Philadelphia, Chicago O'Hare), and anyone booking international business class at competitive fares.
Best Airline Loyalty Programs Ranked
Choosing the right loyalty program can be as important as choosing the right airline. Here's how the major programs stack up in 2026, based on NerdWallet's analysis and our own assessment:
1. Atmos Rewards (Alaska/Hawaiian Airlines) ⭐⭐⭐⭐⭐
Best for: Frequent flyers who want maximum value per mile flown. The combination of distance-based earning, choice earn flexibility in 2026, strong award availability, and valuable point redemptions (1.2 cents per point) makes this the top-value program in the US. The merger of Alaska and Hawaiian's programs into one creates a significantly larger and more useful network.
2. TrueBlue (JetBlue Airways) ⭐⭐⭐⭐½
Best for: East Coast leisure travelers. Earns 6 points per $1 (tied highest), points never expire, and the Blue Sky partnership with United has dramatically expanded where you can redeem TrueBlue points — including United's global Star Alliance network. JetBlue Mosaic status now comes with reciprocal benefits on United flights.
3. AAdvantage (American Airlines) ⭐⭐⭐⭐
Best for: Travelers with American Airlines co-branded credit cards. AAdvantage tied with TrueBlue in NerdWallet's analysis. The program has a massive partner network through the oneworld alliance, and American's credit card partnerships with Citi and Barclays offer strong earning opportunities.
4. MileagePlus (United Airlines) ⭐⭐⭐⭐
Best for: International travelers. MileagePlus is the most powerful program for booking international partner awards — the ability to redeem miles on Lufthansa, ANA, and Singapore Airlines at competitive rates is unmatched by most US programs. The Star Alliance partnership network is unparalleled in scope.
5. SkyMiles (Delta Air Lines) ⭐⭐⭐½
Best for: Delta loyalists who value lounge access and domestic upgrades. SkyMiles has suffered from devaluations in recent years, reducing the cents-per-mile value. However, the Amex integration is deep, and Medallion elite status offers genuine benefits — particularly SkyClub access and complimentary upgrades on domestic routes.
6. Rapid Rewards (Southwest Airlines) ⭐⭐⭐
Best for: Budget travelers who fly Southwest frequently. Earns 6 points per $1, which is strong — but the program's value is limited to Southwest's domestic and limited international network. The new debit card option is a nice addition. Recent policy changes (new bag fees, tighter benefits) have eroded some of the program's appeal.
How to Choose the Right Airline for You
With so many options, the "best" airline depends entirely on your circumstances. Here's a framework:
If you fly primarily for business (domestic)
Choose Delta or Southwest. Delta offers the most consistent premium domestic experience with Sky Club access and reliable upgrades for Medallion members. Southwest is the value play with the fewest operational headaches for road warriors who travel light and hate paying change fees.
If you fly internationally often
Choose United or Delta. United's Star Alliance membership and MileagePlus program offer unbeatable reach for international award redemptions. Delta has the best premium international cabin in US aviation (Delta One Suite) and a growing transatlantic and trans-Pacific schedule.
If you care most about comfort per dollar
Choose JetBlue. The 34-inch seat pitch in standard economy, free Wi-Fi, and Mint business class on transatlantic and transcontinental routes offer comfort at prices that frequently undercut legacy carriers.
If you live on the West Coast or travel to Hawaii/Asia
Choose Alaska or Hawaiian (Atmos Rewards network). The unified network, best-in-class loyalty program, and specific strength on Pacific routes make this the obvious choice for Pacific Northwest and Hawaii-based travelers.
If price is your primary concern
Choose Allegiant, Spirit, or Frontier — but only after you've carefully calculated all fees. These carriers can deliver genuine savings, but only if you pack light, don't need flexibility, and know exactly what you're getting into. For bare-bones short-haul travel, they're hard to beat. For anything more complex, the total cost often converges with or exceeds mid-tier carriers.
If you're a family traveler
Choose Southwest or JetBlue. Southwest's lack of change fees and JetBlue's extra legroom both make for more comfortable family travel. Southwest's open seating model can be a challenge for families wanting to sit together, but its operational reliability means fewer disrupted itineraries — critical when you're traveling with kids.
Tips for Getting the Most Out of Any US Airline
Regardless of which carrier you choose, these practices will improve your experience on nearly every US airline:
Book early — but not too early. The sweet spot for domestic fares is typically 4–8 weeks in advance. International fares are best booked 2–6 months ahead.
Join the loyalty program before you fly. Even if you only fly an airline once a year, membership is free and you might as well earn points. Many carriers will retroactively credit miles for recent flights.
Know your passenger rights. If your flight is delayed, canceled, or significantly changed, you have rights under US Department of Transportation rules. Airlines must refund you if they cancel a flight regardless of the reason, and must provide cash compensation in certain circumstances.
Use a travel credit card. Earning 2–3x points on travel purchases with a general travel card (like the Chase Sapphire Preferred or Amex Platinum) and then transferring to airline programs can significantly accelerate your miles accumulation.
Check award availability early. The best premium cabin award seats (especially lie-flat business class) are released up to 11 months in advance. If you're planning to use miles for a premium international trip, search for award availability as soon as the schedule opens.
Set fare alerts. Tools like Google Flights, Kayak, and Hopper allow you to track specific routes and notify you when prices drop. This is particularly useful for domestic leisure travel where prices can fluctuate significantly week to week.
Frequently Asked Questions
What is the number one airline in the US right now?
Based on the Wall Street Journal's most comprehensive 2025 annual airline ranking — which weighs reliability, on-time performance, cancellation rates, baggage handling, and customer complaints — Southwest Airlines holds the top spot. However, WalletHub's 2026 study (which weighs operational metrics without factoring in fees) gives the top spot to Spirit Airlines. For the best overall premium experience, most travel experts point to Delta Air Lines.
Which US airline has the best on-time performance?
Delta Air Lines led the industry in on-time arrivals in 2025, despite dropping in overall rankings due to the 2024 IT outage. Allegiant Air posted the industry's lowest cancellation rate, while Southwest had the fewest tarmac delays and customer complaints.
Which US airline is the safest?
All major US carriers are considered extremely safe by global standards. The FAA's certification requirements are among the strictest in the world. In WalletHub's safety-specific metrics for 2026, Spirit Airlines ranked highly for safety alongside Frontier. For overall safety reputation and consistent performance, Delta, United, and Southwest are frequently cited.
What is the cheapest US airline?
Spirit Airlines typically offers the lowest base fares, followed closely by Frontier and Allegiant. However, after fees for carry-on bags, seat selection, and other add-ons, the total price often rises to match or exceed mid-tier carriers. For the best all-in value on a domestic trip, Southwest (which still includes two free checked bags on many fares) or JetBlue can actually be cheaper than Spirit once fees are counted.
Which US airline has the best first class?
For domestic first class, Delta offers the most consistently premium experience. For long-haul business class (often branded as "first class" in terms of price and experience), Delta One Suite (on A350 and A330-900neo aircraft) and JetBlue Mint (on transatlantic and transcontinental routes) are the two standout products. United's Polaris business class is also strong for international routes.
What's the best US airline for miles/points?
Based on NerdWallet's 2025–2026 analysis, Atmos Rewards (Alaska/Hawaiian Airlines) offers the best overall value in terms of points earning and redemption. For international award travel, United MileagePlus offers the most flexibility and the ability to book premium seats on Star Alliance partners. For everyday earning, TrueBlue (JetBlue) and Rapid Rewards (Southwest) both earn 6 points per $1 — the highest standard rate among major US carriers.
Which airlines fly the most international routes from the US?
United Airlines has the most extensive international network among US carriers, with over 50 countries served and over 120 international destinations. Its Star Alliance membership provides connections to 195 countries through partner airlines. American Airlines is close behind through its oneworld alliance membership, and Delta rounds out the "Big Three" with strong transatlantic and trans-Pacific presence.
The Best Airlines in the US in 2026
There's no single answer to which airline is "the best" — it depends on where you're going, how you value different trade-offs, and what your budget looks like. But here's our honest summary:
If reliability is everything and you fly domestically → Southwest Airlines
If you want a premium experience on long-haul international flights → Delta Air Lines
If you need to connect to the world through one loyalty program → United Airlines
If you want the most legroom for your money → JetBlue Airways
If you're on the West Coast or fly to Hawaii/Asia regularly → Alaska/Hawaiian Airlines (Atmos Rewards)
If you just want the cheapest seat and don't mind the trade-offs → Spirit or Allegiant
The US airline industry is more competitive — and more interesting — than it's been in years. New loyalty partnerships (Blue Sky between JetBlue and United), new cabin products (Delta One Suites, JetBlue's upcoming domestic first class), and a genuine fight for the value-conscious traveler means that whichever carrier you pick in 2026, there's never been more pressure on airlines to deliver.
Sources: Wall Street Journal 2025 Airline Rankings (January 2026); WalletHub Best US Airlines 2026 (April 2026); AirHelp Score 2025; The Points Guy 2025 Best US Airlines; NerdWallet Best Airline Rewards Programs 2025–2026; Delta Air Lines official website; JetBlue Airways official website; United Airlines official website.
