Southwest Airlines reported that its transition from an open boarding policy to assigned seating is expected to drive a fourfold increase in annual profits. The change, implemented this quarter, introduces tiered fare options and premium legroom seats, creating significant upsell opportunities on each flight. Management highlighted that this represents the airline’s largest operational overhaul since its founding, and early demand metrics show a 25% uplift in ancillary revenue per passenger compared to the same period last year.

In the fourth quarter, Southwest Airlines delivered earnings per share that surpassed consensus forecasts by 12%, driven by improved yield management and cost-control initiatives. Though total revenue growth of 4% fell slightly short of projections, unit revenue was guided to expand by at least 9.5% in the first quarter of 2026. Fuel costs remained stable relative to capacity growth, while unit costs excluding fuel declined by 3%, reflecting efficiencies in crew scheduling and fleet utilization.

Following the strategic announcements and quarterly results, Morgan Stanley reiterated an overweight recommendation and raised its target valuation by 10%, citing stronger margin potential. Investor response was immediate, with trading volume more than doubling the 30-day average and shares posting their largest one-day percentage gain in nearly two decades. Market capitalization now exceeds $25 billion, underscoring renewed confidence in the carrier’s long-term growth trajectory.