St. Louis Lambert International
St Louis, USA · 65 destinations
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DL
Delta Air Lines
F9
Frontier Airlines
WN
Southwest Airlines
AA
American Airlines
F9
Frontier Airlines
WN
Southwest Airlines
AA
American Airlines
F9
Frontier Airlines
F9
Frontier Airlines
WN
Southwest Airlines
UA
United Airlines
AA
American Airlines
WN
Southwest Airlines
AA
American Airlines
DL
Delta Air Lines
WN
Southwest Airlines
AA
American Airlines
WN
Southwest Airlines
AA
American Airlines
F9
Frontier Airlines
WN
Southwest Airlines
DL
Delta Air Lines
WN
Southwest Airlines
WN
Southwest Airlines
Cheapest current round-trip fares from STL. Tap a card to verify on the route page.
About STL
St. Louis Lambert International (STL) is an airport in St Louis, USA serving 65 nonstop destinations across 7 countries. The largest operators are Southwest Airlines, American Airlines and Frontier Airlines. Updated 18 October 2026.
Frequently asked questions
How many nonstop destinations does STL have?
STL (St. Louis Lambert International) serves 65 nonstop destinations across 7 countries.
Which airlines fly nonstop from STL?
Airlines flying nonstop from STL include Delta Air Lines, Frontier Airlines, Southwest Airlines, American Airlines, United Airlines, Lufthansa, Southern Airways Express, British Airways, Air Canada, Alaska Airlines.
What is the ICAO code for STL?
The ICAO code for STL (St. Louis Lambert International) is KSTL.
- ICAO
- KSTL
- Route data
- updated 29 days ago