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 by a wide margin, with fewer cancellations, better on-time rates, and more legroom in standard economy. American is the bigger airline, with 3x 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 for carry-on size: Southwest (24x16x10 vs 22x14x9)
- Winner for checked bag fees: Tie (both $45/$55 on most fares)
- Winner for gate check avoidance: Southwest (consistent 737 fleet, low risk)
- Winner for credit card bag perks: Tie (both offer first bag free via co-brand cards)
Does American or Southwest have more legroom in economy?
Southwest offers 31 inches of pitch versus American’s 30 inches in standard economy, but American’s Main Cabin Extra upgrade provides 3 to 6 extra inches.
Southwest offers 31 inches of seat pitch across its all-Boeing 737 fleet. That is down from 32 inches prior to the 2026 assigned seating transition, but still about an inch more than American’s standard economy at 30 inches. One inch sounds minor until you are on a four-hour cross-country flight with your knees against the seat in front of you.
Southwest’s new seating structure includes Standard, Preferred (near the front), and Extra Legroom rows. Extra Legroom is free for A-List Preferred members and available for purchase on other fares. American offers Main Cabin Extra with 3 to 6 inches of additional 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 for standard economy legroom: Southwest (31” vs 30”)
- Winner for premium economy upsell: American (Main Cabin Extra with more legroom options)
- Winner for Wi-Fi: American (free for AAdvantage members)
- Winner for entertainment: American (seatback screens on many planes)
Is American or Southwest more reliable for on-time flights?
Southwest is far more reliable, with 80% on-time arrivals versus American’s 73% and a cancellation rate less than half of American’s.
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 79.92 percent. American’s was 72.66 percent. That seven-point gap means that on roughly one in every 14 American flights, you arrive late when a Southwest flight on the same route would have been on time. Over 20 trips a year, that is the difference between one or two late arrivals and four or five.
Cancellations tell an even starker story. Southwest’s 2025 cancellation rate was 0.84 percent. American’s was approximately 2 percent, more than double. Southwest was named the most reliable US airline in 2025 by multiple ranking systems, finishing first or second in nearly every reliability metric.
American and Frontier tied for last in the Wall Street Journal’s 2025 overall airline rankings. Southwest finished first. If you are also weighing Southwest against Delta, where the reliability gap is much narrower, see our Southwest vs Delta comparison.
- Winner for on-time arrivals: Southwest (79.92% vs 72.66%)
- Winner for cancellations: Southwest (0.84% vs ~2%)
Does American or Southwest fly to more destinations?
American flies to over 350 destinations in 60+ countries with widebody international service. Southwest covers 117 airports in 11 countries 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 over 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 13 partner airlines including British Airways, Cathay Pacific, Japan Airlines, and Qantas.
Southwest flies to approximately 117 airports in 11 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 117 airports cover 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 for international routes: American (350+ destinations in 60+ countries vs 117 airports in 11 countries)
- Winner for domestic point-to-point: Southwest (fewer connections needed on popular routes)
- Winner for alliance partner access: American (oneworld with 13 partners)
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. AAdvantage miles are worth approximately 1.7 cents per mile on average, with no expiration. 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 for international redemptions: AAdvantage (oneworld alliance)
- Winner for families and couples: Rapid Rewards (Companion Pass)
- Winner for flexibility: Rapid Rewards (free changes, no blackout dates)
- Winner for upgrade path: AAdvantage (free upgrades with elite status)
- Winner for lounge access: AAdvantage (Admirals Club via credit card)
Which basic economy fare is less restrictive, American or Southwest?
Southwest’s Wanna Get Away 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 (Wanna Get Away) 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 for 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
- You prefer 31 inches of legroom over 30 in standard economy
- 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 has not shifted. Southwest is still meaningfully more reliable than American, with a seven-point on-time gap and less than half the cancellation rate. If getting where you are going on time is the thing you care about most, the numbers are clear.
American’s advantage is reach. 350 destinations in 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 extra inch of legroom, and the Companion Pass remain real advantages that American has not matched.