American vs Southwest 2026

Fees, policies, and figures in this comparison reflect what we verified as of Sep 2026 and can change afterward. Our live tools and the data behind them are re-verified more often than the written comparison.

This comparison used to be simple. American was the full-service legacy carrier with international routes and premium cabins. Southwest was the scrappy low-cost airline with free bags, open seating, and a loyalty program built around the Companion Pass. You picked whichever model fit your travel style, and the tradeoffs were obvious.

2026 changed that. Southwest dropped its “Bags Fly Free” policy in May 2025, switched to assigned seating in January 2026, and now charges the exact same checked bag fees as American. The two airlines look more alike on paper than they ever have. But the operational data and route networks still tell very different stories, and those differences matter more than the fare page similarities.

The short version: Southwest is the more reliable airline, with far fewer cancellations, a slight on-time edge, and the larger carry-on allowance. American is the bigger airline, with nearly three times the destinations, international premium cabins, and oneworld alliance access. If you fly mostly domestic, Southwest is the better default. If you need international reach or premium upgrades, American is the only option.

What We Looked For

These two airlines compete on almost every domestic route, so the evaluation focuses on the dimensions that actually separate them in 2026:

• Reliability, measured by on-time arrival percentage and cancellation rate, because getting there matters more than anything else
• Bag policies and fees, because the convergence is the biggest story in this comparison and the details still differ
• Seat comfort, specifically economy pitch and the new Extra Legroom products on Southwest
• Route network, domestic breadth versus international reach
• Loyalty program value, with emphasis on the Companion Pass versus AAdvantage alliance access
• Basic fare restrictions, because the cheapest ticket on each airline comes with meaningfully different tradeoffs

Which airline charges less for bags, American or Southwest?

Both charge $45/$55 for checked bags in 2026, ending Southwest’s free-bag era. Southwest still allows a larger carry-on at 24x16x10 versus American’s 22x14x9.

This used to be the easiest section to write. Southwest had two free checked bags. American charged for everything. That gap is gone.

For tickets booked on or after April 9, 2026, Southwest charges $45 for the first checked bag and $55 for the second. American charges the same: $45 first bag (prepaid online) and $55 second bag. At the airport counter, American bumps to $50 and $60. The pricing is nearly identical.

Where the policies still differ:

Carry-on size. Southwest allows 24x16x10 inches, one of the most generous limits in US aviation. American allows the industry-standard 22x14x9. If you travel with a larger roller or an overstuffed backpack, Southwest gives you meaningfully more room. Check your specific bag against both airlines with our carry-on size checker.

Who gets free bags. On Southwest, A-List Preferred members and Business Select fares get two free checked bags. Rapid Rewards credit cardholders get the first bag free. On American, AAdvantage elites and most AAdvantage co-brand credit cardholders get the first checked bag free.

Gate check risk. Southwest operates an all-737 fleet, so overhead bin sizing is consistent and gate-checking is uncommon. American’s fleet includes regional jets (ERJ-145, CRJ-200) with bins too small for a standard roller, meaning involuntary gate-checks happen more often on American Eagle flights.

For more strategies on avoiding bag fees altogether, see our guide to dodging checked baggage fees in 2026.

Winner: carry-on size

Southwest / 24x16x10 vs 22x14x9

Winner: checked bag fees

Tie / both $45/$55 on most fares

Winner: gate check avoidance

Southwest / consistent 737 fleet, low risk

Winner: credit card bag perks

Tie / both offer first bag free via co-brand cards

Does American or Southwest have more legroom in economy?

American publishes 30 to 32 inches (76 to 81 cm) of standard economy pitch by aircraft and 34 to 39 inches in Main Cabin Extra, while Southwest publishes no standard pitch, only that its Extra Legroom seats add three to five inches.

Southwest does not publish a seat pitch for its Standard seats on its all-Boeing 737 fleet, so there is no official figure to put next to American’s. American’s planes page lists Main Cabin at 30 to 32 inches (76 to 81 cm) depending on aircraft: 30 on the 737-800, 737 MAX 8 and A321, 32 on the A321XLR. A couple of inches sounds minor until you are on a four-hour cross-country flight with your knees against the seat in front of you, so check the aircraft type on American.

Southwest’s new seating structure includes Standard, Preferred (near the front), and Extra Legroom rows. Extra Legroom gives three to five more inches than Standard (5 on the 737-700, 3 on the 737-800 and MAX 8), and is free for A-List Preferred members and available for purchase on other fares. American offers Main Cabin Extra with 34 to 39 inches of pitch, priority boarding, and free alcohol, available for $20 to $200 depending on the route.

Wi-Fi. American offers free Wi-Fi on most domestic flights for AAdvantage members (including free enrollment). Southwest offers Wi-Fi but charges for it on most flights, though streaming entertainment through the Southwest app is free.

Entertainment. American has seatback screens on many aircraft and a streaming library. Southwest has no seatback screens but offers free live TV and on-demand content through the app.

Power outlets. Both airlines offer power outlets and USB ports on most aircraft, though Southwest’s older 737-700s may lack them.

Winner: standard economy legroom

Not published / Southwest publishes no figure; American Main Cabin 30-32 in

Winner: premium economy upsell

American / Main Cabin Extra with more legroom options

Winner: Wi-Fi

American / free for AAdvantage members

Winner: entertainment

American / seatback screens on many planes

Is American or Southwest more reliable for on-time flights?

Southwest is the more reliable airline. The two are nearly even on on-time arrivals (77.04 percent versus American’s 76.43 percent), but Southwest cancels less than half as often.

This is the clearest gap between the two airlines and the one that should carry the most weight in your decision.

Southwest’s 2025 on-time arrival rate was 77.04 percent. American’s was 76.43 percent (both figures from Cirium’s 2025 On-Time Performance Review). On on-time arrivals the two are essentially even, separated by about half a point. The real divide is in cancellations.

Cancellations tell the starker story. Southwest’s 2025 cancellation rate was 0.85 percent. American’s was 2.36 percent (US DOT), nearly three times higher. Of the ten largest US carriers in the DOT data, only Allegiant and Hawaiian cancelled a smaller share of flights than Southwest, and American cancelled the largest share.

If you are also weighing Southwest against Delta, where the reliability gap is much narrower, see our Southwest vs Delta comparison.

Winner: on-time arrivals

Southwest / 77.04% vs 76.43%, nearly even

Winner: cancellations

Southwest / 0.85% vs 2.36%

Does American or Southwest fly to more destinations?

American flies to more than 350 destinations in more than 60 countries with widebody international service. Southwest covers 121 airports with no long-haul international routes.

This is where American wins decisively and it is not close.

American flies to more than 350 destinations in more than 60 countries. It operates widebody aircraft (777s, 787s) on long-haul international routes with premium cabins including Flagship First and Flagship Business. Its hubs at DFW, CLT, MIA, ORD, PHL, PHX, and LAX cover nearly every US region with nonstop international service. As a oneworld alliance member, American connects to partner airlines including British Airways, Cathay Pacific, Japan Airlines, and Qantas.

Southwest flies to 121 airports in 12 countries, primarily within the United States, Mexico, Central America, and the Caribbean. It operates no widebody aircraft and no true long-haul international service. If your trip involves crossing an ocean, Southwest is not an option.

For domestic coverage, the gap narrows. Southwest’s network covers most major and mid-size US cities, and its point-to-point network avoids the hub-and-spoke connection penalty that sometimes adds a stop on American itineraries. On many popular domestic routes (Dallas to Denver, Chicago to Nashville, Phoenix to Las Vegas), both airlines compete directly and the fare difference is minimal.

Winner: international routes

American / 350+ destinations in 60+ countries vs 121 airports

Winner: domestic point-to-point

Southwest / fewer connections needed on popular routes

Winner: alliance partner access

American / oneworld partners worldwide

Is AAdvantage or Rapid Rewards the better loyalty program?

AAdvantage is better for international travelers with oneworld alliance access and upgrade paths. Rapid Rewards is better for families thanks to the Companion Pass and no blackout dates.

AAdvantage and Rapid Rewards solve different problems, and the right choice depends almost entirely on how you travel.

AAdvantage earns miles based on ticket price. As of December 17, 2025, Basic Economy fares no longer earn AAdvantage miles or Loyalty Points, which cuts out the cheapest fare class entirely. Elite status (Gold, Platinum, Platinum Pro, Executive Platinum) unlocks free upgrades, priority boarding, and lounge access. The Citi AAdvantage Executive card provides Admirals Club access. American does not publish a value per mile, and AAdvantage miles do not expire. Oneworld alliance redemptions open up partner awards on British Airways, Cathay Pacific, JAL, and others.

Rapid Rewards earns points based on fare price with a simple multiplier system. There are no blackout dates on award flights, and points never expire as long as you have earning activity every 24 months. The marquee feature is the Companion Pass: earn 135,000 qualifying points (125,000 with a Southwest credit card) or fly 100 qualifying one-way flights in a calendar year, and a designated companion flies with you for free (plus taxes and fees) for the rest of that year and the entire following year. For families or couples who fly Southwest frequently, the Companion Pass is worth more than any other domestic airline perk.

Southwest also allows free flight changes and cancellations on most fare types, while American charges change fees on Basic Economy and limits refunds across lower fare classes.

Winner: international redemptions

AAdvantage / oneworld alliance

Winner: families and couples

Rapid Rewards / Companion Pass

Winner: flexibility

Rapid Rewards / free changes, no blackout dates

Winner: upgrade path

AAdvantage / free upgrades with elite status

Winner: lounge access

AAdvantage / Admirals Club via credit card

Which basic economy fare is less restrictive, American or Southwest?

Southwest’s Basic fare is less restrictive. You still earn loyalty points, you can change or cancel with credit, and the checked bag fee is $10 lower.

Both airlines offer a stripped-down entry fare, but the restrictions differ:

American Basic Economy includes a carry-on and personal item on domestic flights. You cannot select a seat until check-in, board last in Group 9, and cannot change or cancel the ticket. No upgrades. First checked bag is $55 (higher than regular Main Cabin). As of December 2025, you earn zero AAdvantage miles.

Southwest Basic includes a carry-on and personal item. You receive a Standard seat assigned at check-in (no choice at booking). First checked bag is $45. You earn Rapid Rewards points. Flights can be changed or cancelled with credit for future travel.

Southwest’s Basic fare is less restrictive: you still earn loyalty points, you can still change the flight, and the checked bag fee is $10 less. American’s Basic Economy is a harder product to love, especially after losing mileage earning.

Winner: basic fare value

Southwest / earns points, allows changes, lower bag fee

Who Should Pick American

• You fly internationally and need a carrier with long-haul routes and premium cabins
• You value oneworld alliance access for partner redemptions on British Airways, Cathay Pacific, or JAL
• You want a domestic upgrade path through elite status or credit card perks
• Your home airport is an American hub (DFW, CLT, MIA, ORD, PHL, PHX) where nonstop options are strongest
• You want free Wi-Fi included with your AAdvantage membership
• You need Admirals Club lounge access

Who Should Pick Southwest

• You fly mostly domestic and prioritize on-time reliability over everything else
• You travel as a couple or family and can qualify for the Companion Pass
• You want flexibility to change or cancel flights without penalty
• You pack larger carry-on bags that exceed American’s 22x14x9 limit
• Your travel schedule is unpredictable and you value the ability to rebook without fees
• You fly out of a Southwest-heavy airport where point-to-point routes avoid connections

The Bottom Line

The airline that used to be the obvious budget pick now charges the same bag fees as the legacy carrier across the terminal. Southwest’s identity has shifted in 2026, and the “Bags Fly Free” era is over. But the operational data still favors Southwest. The two are nearly even on on-time arrivals now, yet Southwest cancels less than half as often. If avoiding a scrapped flight is the thing you care about most, the numbers are clear.

American’s advantage is reach. More than 350 destinations in more than 60 countries with widebody premium cabins is a different product than Southwest can offer, and the oneworld alliance makes AAdvantage miles valuable in ways Rapid Rewards points cannot match. If you fly internationally or chase upgrades, American is the only realistic option between these two. For travelers also considering United as their legacy carrier pick, our United vs Southwest comparison covers that matchup.

For the domestic traveler who just wants to get from A to B reliably, comfortably, and without getting nickel-and-dimed on changes, Southwest is still the better airline in 2026. The bags are no longer free, but the reliability, the free changes and the Companion Pass remain real advantages that American has not matched.