76.5% of their passenger revenue 76.5% of their passenger revenue "Southwest Airlines Fleet Details and History" Southwest serves Fact Sheet Southwest Airlines: Southwest Corporate Factsheet Southwest serves over 700 in service today the average passenger airfare costing $154.85 Boeing 737 Boeing 737s and 717s in its fleet the average passenger airfare costing $154.85 as Southwest’s fleet is 67% Southwest 100 million customers annually "Southwest/AirTran Top Ten Airports by Departures" as Southwest’s fleet is 67% SWA’s Fact Sheet 76.5% of their passenger revenue over 700 in service today over 700 in service today Southwest’s utilization numbers Southwest Airlines budget-friendly image the average passenger airfare costing $154.85 Southwest Airlines Corporate Fact Sheet Southwest Airlines Corporate Fact Sheet 40 consecutive years Southwest Airlines Corporate Fact Sheet Southwest serves