Southwest: 2025 in stats
- Southwest is making changes to its offering in an attempt to increase revenue. The most significant one, from January 2026, is the roll out of assigned seating.
- Southwest remains the third largest airline in the world despite a decline in capacity of 0.9% in 2025.
- The airline has differing shares of market capacity across its five largest bases, ranging from dominance at Chicago Midway (90.5%) through to Denver where the airline has 30% of the airport’s capacity and competes head-to-head with United Airlines.
Southwest: Capacity by type
Southwest: Capacity by region
Southwest: Top 5 busiest airports
Southwest: Aircraft fleet composition
.png?width=150&height=150&name=aa%20(1).png "American Airlines")
.png?width=150&height=150&name=BA%20(1).png "British Airways")
.png?width=200&height=200&name=china-eastern%20(1).png "China Eastern")
