Southwest Airlines Requires Plus-Size Passengers to Pre-Book Extra Seat for Flights Starting 2026

Southwest Airlines is set to implement a new policy that requires passengers who cannot fit within the armrest boundaries of a standard seat to purchase an additional seat in advance. The policy, effective January 27, 2026, aligns with the airline’s broader shift to assigned seating and aims to minimize in-flight disruptions [1]. Under the new rule, larger passengers must proactively secure an extra seat at the time of booking, rather than attempting to request it at the airport. Previously, such requests were handled on a case-by-case basis, and refunds were often issued if available [2].

The airline clarified that this is not a new fee but a requirement to book the extra seat in advance, ensuring smoother operations for both passengers and crew [2]. If a passenger fails to secure an additional seat before departure, they will be required to purchase one at the airport. In the event the flight is full, the passenger may be rebooked onto an alternative flight [1]. Refunds for the second seat remain possible under certain conditions, including if there is at least one open seat on the flight and both tickets were booked in the same class [1].

The change reflects an industry-wide trend toward managing cabin space more efficiently. With the rise in carry-on baggage and the increased demand for seat space, airlines are under pressure to maintain punctual boarding and avoid delays. Southwest’s move follows similar policies introduced by other carriers to address seating conflicts and enhance in-cabin safety and comfort [4]. The policy also supports the airline’s transition to a more structured boarding and in-flight experience [5].

While the airline has not disclosed how many passengers may be affected or how the pricing for the second seat will be structured, the change is expected to contribute to revenue and reduce in-flight disruptions. Analysts suggest this could serve as a new income stream for the airline, but these projections remain speculative [8]. Critics argue that the policy may disproportionately impact passengers with larger body types and raise concerns about accessibility in air travel. However, supporters highlight the importance of balancing passenger comfort with the rights of others [7].

The policy change also reflects Southwest’s broader financial pressures and its need to increase profitability amid rising operational costs and investor demands [1]. The airline has previously eliminated perks such as free bag allowances to boost revenue, and this latest shift is part of an ongoing strategy to align with industry trends while maintaining profitability.

This development underscores the evolving landscape of air travel, where airlines are increasingly focused on optimizing space, managing costs, and improving the overall passenger experience. Southwest’s new policy may influence other carriers to adopt similar measures in the future [9].

Source:

[1] https://fortune.com/2025/08/25/southwest-airlines-plus-size-policy-passengers/

[2] https://www.reddit.com/r/SouthwestAirlines/comments/1mz7j4y/southwest_charging_plussize_passengers_for_2_seats/

[3] https://creators.yahoo.com/lifestyle/story/southwest-updates-plus-size-seating-rules-what-flyers-need-to-know-185412608.html

[4] https://www.aol.com/ive-flown-american-airlines-almost-101701809.html

[5] https://www.aol.com/getting-handle-cabin-baggage-confusing-055402233.html

[6] https://www.tiktok.com/discover/southwest-flex-pay-reviews

[7] https://mynorthwest.com/national

[8] https://www.facebook.com/hwoodunlocked/posts/-southwest-airlines-is-tightening-its-refund-policy-for-plus-size-passengers-loo/1209776637859587/

[9] https://www.yelp.com/biz/southwest-airlines-houston-6