Southwest Airlines has officially ended its decades-long open-seating system and implemented a new Southwest seating policy that requires passengers with larger body sizes to purchase two seats. Under the policy, which took effect on January 27, 2026, travelers who cannot comfortably fit between armrests must buy an additional seat in advance. If a flight is full, those passengers may be rebooked on another flight. If the determination is made after boarding, they may be asked to deplane.
An industry source said the change reflects a strategic shift. As Southwest Airlines moves toward a revenue model similar to competing carriers, the airline is abandoning the traditional low-cost carrier identity defined by simplicity, low fares, and inclusivity. The source said the company is reorganizing around a profit-focused structure centered on seat tiering and expanded ancillary revenue.
Under the new Southwest seating policy, seats are now divided into three categories: Standard, Preferred, and Extra Legroom. Boarding has also changed from the familiar A, B, and C groups to eight numbered groups.
The airline said the changes respond to customer demand. “Customers want more choices,” the company said, adding that the new seating structure will expand premium seat sales and improve profitability.
The most significant shift affects passengers with larger body sizes. Travelers who cannot sit between armrests are now required to purchase two seats during the booking process.
Previously, such passengers could buy an extra seat and later receive a refund, or request a complimentary additional seat at the airport if one was available. That option has been eliminated. Advance purchase is now mandatory.
If a flight is already full, affected passengers may be moved to a later departure. If the assessment occurs after boarding, the airline may ask the passenger to leave the aircraft.
BY Eunyoung Lee
[lee.eunyoung6@koreadaily.com]


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