FLIGHTLINE INTEL COMMERCIAL AVIATION INTELLIGENCE
Route T-100 Intelligence

DCA ↔ STL

Two-way market traffic, capacity, airline participation and annual performance.

185,716
2026 passengers
2,257
2026 departures
67.9%
2026 market load factor

2026 airlines

CodeAirlinePassengersDeparturesLoad factor
WNSouthwest Airlines Co.138,1731,36866.4%
OHPSA Airlines Inc.40,85576374.7%
YXRepublic Airline5,16711161.3%
AAAmerican Airlines Inc.1,2521365.7%
ASAlaska Airlines Inc.143188.8%
UAUnited Air Lines Inc.1261100.0%

Annual history

YearPassengersPassengers/daySeatsDeparturesLoad factor
2015357,516979.5478,8024,44974.7%
2016399,0191,090.2474,6744,41384.1%
2017397,3931,088.7478,6245,01283.0%
2018446,6581,223.7555,6945,45580.4%
2019483,3871,324.3594,8585,64781.3%
2020144,873395.8301,1262,55848.1%
2021187,778514.5243,3082,36777.2%
2022407,6441,116.8549,2594,99674.2%
2023450,3521,233.8586,4954,67776.8%
2024465,0441,270.6588,2744,55679.1%
2025413,4541,132.8592,8174,55869.7%
2026185,7161,026.1273,4402,25767.9%
Source: U.S. Department of Transportation, Bureau of Transportation Statistics T-100 Segment data.