Airports · St. Louis Lambert International Airport
Flights from St Louis (STL)
Airlines flew 71,582 departures out of St. Louis Lambert International Airport (STL) carrying 7,517,660 passengers over the 12 months through April 2026. Here's what actually flew — the busiest routes, the carriers, and the aircraft — from US DOT T-100 filings.
What flies from St Louis
US DOT T-100 · filed dataWhat airlines actually flew out of St Louis — departures, seats, and passengers filed with the US DOT (T-100) over the trailing 12 months, not a schedule.
Departures
71,582
April 2026
Seats flown
10,154,004
Passengers
7,517,660
Load factor
74.0%
passengers ÷ seats
Busiest routes from St Louis
Where flights from St Louis go most, by departures over the trailing 12 months.
4,931 departures · 304,810 passengers
77.3%
Load
3,633 departures · 452,546 passengers
74.4%
Load
3,624 departures · 467,718 passengers
79.8%
Load
3,573 departures · 290,407 passengers
76.2%
Load
2,469 departures · 326,570 passengers
76.1%
Load
2,339 departures · 201,003 passengers
67.0%
Load
2,298 departures · 260,594 passengers
81.1%
Load
2,287 departures · 295,452 passengers
80.7%
Load
2,217 departures · 208,999 passengers
75.8%
Load
2,044 departures · 271,566 passengers
75.6%
Load
1,894 departures · 172,709 passengers
74.8%
Load
1,893 departures · 215,339 passengers
69.7%
Load
1,847 departures · 231,899 passengers
79.7%
Load
1,775 departures · 175,131 passengers
61.8%
Load
1,597 departures · 166,306 passengers
80.5%
Load
Airlines at St Louis
Ranked by seats flown — the capacity each carrier actually operated out of St Louis.
- WN
6,620,918 seats · 72.1% load
65.2%
Share
- AA
898,100 seats · 76.8% load
8.8%
Share
- DL
749,775 seats · 78.4% load
7.4%
Share
- F9
373,690 seats · 71.8% load
3.7%
Share
- UA
355,087 seats · 78.7% load
3.5%
Share
- YX
221,165 seats · 79.2% load
2.2%
Share
- OO
166,420 seats · 79.7% load
1.6%
Share
- AS
139,036 seats · 84.9% load
1.4%
Share
- G7
129,500 seats · 82.4% load
1.3%
Share
- MQ
124,174 seats · 86.0% load
1.2%
Share
Aircraft flown from St Louis
Aircraft types by share of departures — what actually operated, not what's based here.
15,529 departures · 74.9% load
21.7%
Share
14,830 departures · 72.1% load
20.7%
Share
14,587 departures · 70.8% load
20.4%
Share
6,228 departures · 81.0% load
8.7%
Share
3,657 departures · 76.9% load
5.1%
Share
Bombardier CRJ-550
2,633 departures · 82.5% load
3.7%
Share
2,615 departures · 78.2% load
3.6%
Share
1,982 departures · 80.1% load
2.8%
Share
1,570 departures · 77.6% load
2.2%
Share
1,467 departures · 80.9% load
2.1%
Share
1,082 departures · 78.5% load
1.5%
Share
Cessna C208B
984 departures · 24.8% load
1.4%
Share
Monthly departures from St Louis
Monthly departures from St Louis, trailing 12 months through April 2026. Bars scale to the busiest month.
May 2025
6,327 departures · 704,144 passengers
78.4%
Load
June 2025
6,493 departures · 712,504 passengers
77.2%
Load
July 2025
6,655 departures · 727,217 passengers
77.9%
Load
August 2025
6,303 departures · 656,825 passengers
74.3%
Load
September 2025
5,945 departures · 637,377 passengers
74.9%
Load
October 2025
6,346 departures · 690,677 passengers
76.7%
Load
November 2025
5,750 departures · 586,660 passengers
71.3%
Load
December 2025
5,924 departures · 631,236 passengers
74.2%
Load
January 2026
5,143 departures · 483,305 passengers
66.3%
Load
February 2026
4,991 departures · 487,279 passengers
69.8%
Load
March 2026
5,954 departures · 625,110 passengers
73.8%
Load
April 2026
5,751 departures · 575,326 passengers
70.5%
Load
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through April 2026. The DOT publishes roughly three months in arrears.