Southwest Airlines to Require Plus-Size Passengers to Reserve Extra Seats

Southwest Airlines is set to implement a new policy on January 27, 2026, that will require plus-size passengers to proactively book additional seats in advance. This change to the airline’s “Customer of Size” policy has raised concerns and discussions among travelers regarding its implications for accessibility and comfort.

Under the new guidelines, passengers who identify as plus-size will need to purchase the necessary number of seats ahead of their flight to ensure the availability of an adjacent seat. This shift comes as Southwest Airlines prepares for the introduction of assigned seating, a significant change in its operational model. According to the airline’s official website, the requirement aims to provide clarity and ensure that all passengers have adequate space during their flights.

Jeff Jenkins, founder of the plus-size travel blog, Chubby Diaries, expressed concern regarding the potential impact on travelers. “I just hope that consumers are aware of this change and I wonder if plus-size people will skip out on flying with them at all because of them not knowing if the flight is sold out or not,” Jenkins told USA Today. He emphasized that this policy could increase anxiety for passengers already facing challenges when flying.

To assist passengers in determining their seating needs, Southwest Airlines has published information about the seat widths of its Boeing 737 models. The widths range from 15.5 inches to 17.8 inches, with the armrest marking the official boundary of each seat.

In a statement to FOX Business, Southwest Airlines explained, “We are updating many policies as we prepare our operation, employees and customers for assigned seating on January 27, 2026. To ensure space, we are communicating to Customers who have previously used the extra seat policy they should purchase it at booking.”

Passengers who purchase an extra seat may be eligible for a refund if certain conditions are met. These include situations where at least one seat was open on the flight at departure, both seats purchased were in the same fare class, and the refund request is made within 90 days of the flight. Previously, the airline had advised plus-size customers to buy two seats but offered fewer restrictions on refunds.

This policy marks a significant departure from Southwest’s earlier practices, which allowed larger travelers to book two seats for the price of one. The airline had been recognized for its inclusive approach, often regarded as having one of the most accommodating policies for larger passengers in the United States.

Advocates for inclusivity in air travel have expressed concern that these changes could render flying financially unfeasible for many. Long-time customers are also voicing their dissatisfaction, arguing that the new policy contradicts Southwest’s established reputation as a customer-centric airline.

As the airline navigates these changes, the conversation surrounding inclusivity and the costs associated with flying continues to evolve. Observers across the airline industry and the traveling public are likely to monitor how these new regulations will influence customer loyalty and overall travel experiences in the future.