In December 2024, 
Southwest Airlines plans an average of 3,838 daily services, 375 fewer than a year ago (down by 8.9%). Obviously, the vast majority3,571 dailyare domestic. Southwest has 17.1% of the US’s enormous domestic market by flights in the festive month. However, due to its all-Boeing 737 fleet, it has more than one in five domestic seats for sale (21.1%).