FLIGHTLINE INTEL COMMERCIAL AVIATION INTELLIGENCE
Route T-100 Intelligence

HOU ↔ STL

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

164,164
2026 passengers
1,509
2026 departures
67.1%
2026 market load factor

2026 airlines

CodeAirlinePassengersDeparturesLoad factor
WNSouthwest Airlines Co.163,9911,50567.2%
SYSun Country Airlines d/b/a MN Airlines88223.7%
UAUnited Air Lines Inc.52131.3%
DLDelta Air Lines Inc.33145.8%

Annual history

YearPassengersPassengers/daySeatsDeparturesLoad factor
2015289,748793.8377,9632,63976.7%
2016293,050800.7389,5002,66775.2%
2017307,936843.7411,4872,72174.8%
2018318,955873.8413,4322,73477.1%
2019308,240844.5416,0082,73174.1%
2020149,369408.1278,3131,85853.7%
2021218,491598.6282,7651,79277.3%
2022307,649842.9379,7332,29981.0%
2023332,435910.8455,8812,85972.9%
2024345,199943.2481,4253,07371.7%
2025335,918920.3494,2083,05268.0%
2026164,164907.0244,6571,50967.1%
Source: U.S. Department of Transportation, Bureau of Transportation Statistics T-100 Segment data.