Southwest Airlines Shocks Travelers: Ending Flights at O’Hare & Dulles—What It Means for Summer 2026

Southwest Airlines is about to overhaul two of its most recognizable policies, and travelers booking flights for next year need to prepare now. On January 27, 2026, the carrier will abandon its decades-old open-seating model and introduce assigned seating across three tiers—Standard (rear cabin), Preferred (front), and Extra Legroom (exit-row) seats. Fare type will dictate boarding order and perks, giving passengers more control but also adding fresh revenue streams for the airline. At the same time, Southwest’s “Customer of Size” program is getting stricter. Plus-size travelers will now be required to purchase an extra seat up front and pay the associated seat fee. Refunds remain possible after the trip, but only if both seats were booked in the same fare class, the request is filed within 90 days, and at least one seat would have otherwise gone out empty on that flight. Why the shake-up? Executives say customer preference studies showed growing demand for guaranteed seating and premium legroom, while analysts point to untapped ancillary revenue that could offset stubbornly high fuel and labor costs in 2026. The changes also streamline pre-boarding rules for military members and families, eliminating confusion that has occasionally slowed Southwest’s famously quick turn-times. What flyers should do now • If your itinerary departs on or after Jan 27, choose your seat when you buy; availability for Extra Legroom rows is already tight on peak-time flights. • Budget travelers can still pick Standard seats at no extra cost, but boarding position will fall later than today’s EarlyBird check-ins. • Plus-size passengers who historically relied on complimentary extra seats should factor the new fee into trip budgets and keep documentation handy to request refunds post-flight. • Rapid Rewards members may want to bank points for Preferred or Extra Legroom upgrades instead of cash. Industry watchers will be monitoring whether Southwest’s once-unique boarding style—long a brand differentiator—can transition smoothly without eroding its loyal fan base. For now, one thing is certain: if you plan to fly Southwest next year, locking in your exact seat well ahead of departure is the smartest way to avoid surprises at the gate.