Southwest Airlines has completed its transition from an open seating policy to assigned seats, forecasting a fourfold increase in annual profits as a direct result of new seat-selection fees and premium cabin options. The airline has introduced extra-legroom sections and tiered fare classes, enabling upsell opportunities that management expects will drive ancillary revenue growth by approximately 150% year over year. Chief Executive Bob Jordan described the move as the largest operational change in the company’s history, aimed at aligning Southwest’s revenue model with industry peers while preserving its cost-leadership position.

In Q4 2025, Southwest reported net income of $323 million, up 24% compared with the year-ago period, and revenue of $7.44 billion, a 7.4% increase. Adjusted earnings per share of $0.58 matched consensus estimates, while unit revenues are forecast to grow at least 9.5% in Q1 2026. For full-year 2026, the company projects adjusted earnings of at least $4.00 per share—more than quadruple the $0.93 earned in 2025—and capacity growth of 2%–3%. Management cited strong demand resilience and successful implementation of seat and baggage fees as key drivers of the upgraded outlook.

Investor enthusiasm around the assigned-seating rollout propelled Southwest’s shares to their largest one-day gain in 17 years, with volume reaching nearly 31 million shares traded. The stock’s market capitalization stands at roughly $25.05 billion. Morgan Stanley reaffirmed an overweight rating on the carrier, highlighting confidence in the new revenue streams and the potential for continued margin expansion. While the higher fee structure enhances top-line visibility, some analysts caution that customer pushback and integration risks could introduce volatility into earnings execution.