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Southwest and American Airlines serve completely different traveler needs. Southwest is a domestic US specialist with two free checked bags, no change fees, and lower base fares. American is a traditional full-service carrier with a massive international network, multiple service classes, and a standard bag fee structure. The right choice depends almost entirely on whether you’re flying domestically or internationally, and whether free bags and flexibility matter more to you than route coverage and premium cabin options.
Route Networks
Southwest: Domestic US focus. Southwest flies to roughly 120 destinations primarily within the US, with some service to Mexico, the Caribbean, and a handful of Central American cities. If you’re flying coast-to-coast or between US cities, Southwest is almost certainly an option.
American: One of the largest global networks in aviation. American flies to over 350 destinations across more than 50 countries. For international travel — Europe, Asia, South America, Africa — American is a viable option and Southwest is not.
Winner for international: American by default — Southwest simply doesn’t cover the routes.
Baggage Fees
This is the biggest practical differentiator for most travelers.
- Southwest: Two free checked bags per passenger on every fare, every time. No size surcharge for standard checked bags within weight limits (50 lbs each). Carry-on and personal item also free.
- American: Basic economy: personal item only (carry-on costs extra on some routes). Main cabin and above: one carry-on and personal item free. Checked bags cost $35 for the first and $45 for the second on most domestic routes. American AAdvantage credit card holders or AAdvantage status members get free checked bags.
A round trip with two checked bags on American can add $140 to your ticket price. That alone often closes the price gap with Southwest, even when Southwest’s published fare appears higher.
Ticket Flexibility
- Southwest: No change fees on any fare. If the price drops, you can rebook and get the difference back as a travel credit. Fully refundable fares available. This flexibility is a real advantage for travel with uncertain dates.
- American: Change fees eliminated on most domestic and short-haul international fares. Basic economy remains non-changeable. International long-haul fares may still have change fees depending on the ticket type. Refundable fares exist but are significantly more expensive.
Cabin Classes and Seating
- Southwest: One cabin class. No first class, no business class, no premium economy. Every seat is the same fare tier. Southwest moved from open seating to assigned seating — check their current policy at booking, as this transition was ongoing in 2025.
- American: Multiple cabin classes: basic economy, main cabin, main cabin extra (extra legroom), premium economy (on some international routes), business class (Flagship Business), and first class on select domestic routes. Significant experience differences between tiers.
Loyalty Programs
- Southwest Rapid Rewards: Earn points based on the dollar value of your ticket, not miles flown. Points have consistent value and can be used for any available seat with no blackout dates. The Companion Pass (earned by accumulating 135,000 points in a calendar year) lets you bring one person on every flight free for the rest of that year and the following year — one of the best travel benefits in US aviation.
- American AAdvantage: Earn miles based on distance flown and ticket price. Miles can be redeemed for flights, upgrades, and partner awards including Oneworld alliance partners. AAdvantage is part of a global alliance, making it useful for booking international travel on partner airlines at potentially better rates than cash fares.
On-Time Performance and Reliability
Both carriers have had performance issues in recent years. Southwest’s 2022 holiday meltdown (over 16,000 flights cancelled in a week) was one of the worst operational failures in US airline history and significantly damaged its reliability reputation. American has had its own operational struggles with staffing and weather-related cancellations. Neither carrier has a strong consistent advantage on-time — check recent DOT data for current rankings before booking if reliability is a priority for a specific route.
Verdict: Which Is Better?
Choose Southwest if: You’re flying domestically, you’re checking bags, you value flexibility on dates, or you’re chasing the Companion Pass. Southwest’s no-fee bag policy alone makes it the clear value winner for most domestic trips with luggage.
Choose American if: You’re flying internationally, you want premium cabin options (business class, lie-flat beds), you have AAdvantage elite status or an AAdvantage credit card that waives bag fees, or Southwest doesn’t serve your route. American’s global network is its defining advantage.
Southwest vs American Airlines: Frequently Asked Questions
Does Southwest have free checked bags?
Yes. Southwest includes two free checked bags per passenger on every fare. This is the most significant practical advantage Southwest has over American and most other US carriers, which charge $35 or more per checked bag.
Is Southwest or American better for international flights?
American, by far. Southwest primarily flies domestic US routes with limited service to Mexico and the Caribbean. American has one of the largest international networks in the world, flying to 50+ countries. For any significant international travel, American or a partner carrier is the right choice.
Can I change my flight for free on Southwest?
Yes. Southwest doesn’t charge change fees on any fare type. If the new flight costs more, you pay the difference. If it costs less, the difference is returned as a travel credit. This no-fee change policy applies across all Southwest fares.
Does Southwest have business class or first class?
No. Southwest operates a single cabin class with no first class, business class, or premium economy. American has multiple service tiers including business class with flat beds on international routes.
Which airline has better loyalty rewards: Southwest or American?
Depends on how you travel. Southwest Rapid Rewards is simpler (points based on ticket price, no blackout dates, Companion Pass opportunity). American AAdvantage earns miles useful for international partner redemptions and has global alliance reach through Oneworld. Frequent domestic travelers often prefer Southwest’s program. Frequent international travelers often prefer AAdvantage’s global reach.
Which airline is cheaper, Southwest or American?
It varies by route and date. Southwest’s base fares are often competitive, but the key comparison is the total cost with bags. Two checked bags on American add $70 one-way. If Southwest’s fare is within $70 of American’s fare and you’re checking two bags, Southwest is cheaper. Always compare total cost including bags before booking.
