Southwest Airlines Plus-Size Seating Policy Overhaul Sparks Passenger Concerns

Southwest Airlines, long hailed for its customer-friendly approach, is fundamentally altering a policy cherished by many of its loyal passengers. The carrier announced a significant change to its seating rules for plus-size travelers, moving from a largely refundable system to one where an extra purchased ticket may not be refunded. This shift, set to take effect in early 2026, marks a substantial departure from the practices that previously distinguished the airline in a competitive market and has immediately generated discussion among passenger advocacy groups.

What Are Southwest Airlines’ New Plus-Size Passenger Rules?

The core of the change revolves around the purchase and refundability of an extra seat. Under the current policy, a customer of size can proactively buy an additional seat for their comfort and the comfort of those around them. A key benefit has been that Southwest would refund the cost of that second seat after travel, effectively providing the space at no extra charge. Alternatively, passengers could also request the extra seat at the gate on the day of travel without any fee.

The new policy, effective January 27, 2026, removes that guarantee. Passengers will still be required to purchase the additional seat if they require the space. However, the critical change is that this second ticket will now be non-refundable. A refund will only be issued under one specific condition: if the flight ultimately departs with at least one open seat. Furthermore, both the original and the extra seat must be purchased within the same fare class to be eligible for this potential refund, adding another layer of complexity for travelers.

Navigating the New Guidelines for Comfort and Compliance

This policy revision forces plus-size passengers to carefully weigh the financial risk of booking travel with Southwest. The uncertainty of a refund introduces a new element of budgeting for a trip, as there is no longer an assurance of recouping the cost of the necessary extra space. Travelers must now hope for undersold flights to avoid a hefty additional charge, a scenario that is less common in the current era of high-capacity flights.

The airline states the change is designed to better manage its aircraft seating and inventory. However, the move is seen by industry observers as part of a broader trend of airlines rolling back long-standing customer perks to bolster revenue. This seating policy shift follows other recent, notable changes at Southwest, including the end of its iconic open seating policy and the introduction of checked baggage fees, signaling a new chapter for the airline.

A Broader Shift in Airline Customer Service Approaches

Southwest’s decision places it more in line with the standard practices of other major US carriers, most of which have similar non-refundable policies for extra seats. While this creates industry consistency, it also eliminates a significant competitive advantage that Southwest held. For years, its refundable extra-seat policy was a benchmark for inclusivity and customer care, building deep loyalty within the plus-size community. The revocation of that benefit is perceived by many as a step away from passenger-centric values in favor of financial performance.

The new Southwest Airlines plus-size seating policy represents a major cultural shift for the carrier, moving from a guaranteed refund to a conditional one and placing the financial burden of an undersold flight on the passenger. Travelers are advised to review the updated guidelines thoroughly before booking to understand the potential costs and requirements for a comfortable journey.

Must Know

What is changing with Southwest’s customer of size policy?
Southwest is changing its policy for passengers who need an extra seat. Starting January 27, 2026, the extra seat purchased will be non-refundable unless the flight departs with an empty seat and both tickets were bought in the same fare class. This replaces the previous policy of a guaranteed refund.

Do I still need to buy a second seat on Southwest?
Yes, if a passenger cannot lower both armrests and fit comfortably in a single seat without encroaching on the neighboring space, Southwest requires the purchase of an additional seat to ensure safety and comfort for everyone.

How do I get a refund for the extra seat under the new rules?
A refund for the cost of the extra seat will only be issued if the flight you are on departs with at least one open, vacant seat. Your original and extra seat must also have been purchased in the same fare class to be eligible.

Why is Southwest making this change?
The airline has stated the update is intended to better manage its seating inventory. This change aligns with other recent operational shifts, such as ending open seating and adding baggage fees, as the carrier adapts its business model.

When does the new Southwest seating policy start?
The updated policy for plus-size passengers will take effect on January 27, 2026. All travel on or after that date will be subject to the new terms and conditions.