You will find St. Louis Lambert International Airport covering 3,793 acres in unincorporated St. Louis County, located 14 miles northwest of downtown St. Louis between Berkeley and Bridgeton. As the largest and busiest airport in Missouri, it serves as a primary regional gateway offering nonstop service to over 80 destinations across the United States, Canada, Mexico, the Caribbean, and Europe.
The airport served nearly 16 million passengers in 2024 and features four operational runways. Ground operations are organized across main passenger facilities including Terminal 1 and Terminal 2. Southwest Airlines dominates current operations out of Terminal 2, while other major airlines and international service connect through the airport's active concourses, continuing a rich aviation legacy spanning over a century.
01 Terminals & concourses
Terminal 1 houses major concourses including A and C, alongside historic facilities that expanded over decades of passenger growth.
Formerly known as the East Terminal, Terminal 2 houses Concourse E where Southwest Airlines operates its extensive route network.
Airport map
The free OpenStreetMap layer below shows the whole airport — terminals, concourses, access roads and the parking garages. Zoom in for gate-level detail.
Map: © OpenStreetMap contributors (ODbL, free). Official gate/terminal maps are copyrighted — we link to them.
02 Which terminal does my airline use?
Airlines are grouped by alliance and region. Always confirm the concourse printed on your boarding pass — assignments can change seasonally.
Show all airlines by terminal ›
Grouped by terminal — check the concourse on your boarding pass before you fly; assignments can change seasonally.
Lost, delayed or damaged baggage at STL
If your checked bag doesn't turn up on the belt, act before you leave the baggage-claim area — that's where every airline keeps its Baggage Service Office.
- Go to your airline's Baggage Service Office in the baggage-claim hall of your arrival terminal.
- File a Property Irregularity Report (PIR) and get your file reference (WorldTracer) number. Keep your bag-tag receipt and boarding pass.
- Track it online using that reference on your airline's baggage-tracking page — most bags are located within 24–48 hours.
- Claim your essentials. On delayed bags airlines reimburse reasonable interim purchases (toiletries, clothing) — keep receipts. International trips are covered by the Montreal Convention.
- If it's truly lost (generally after 21 days) or damaged, file the claim at the same office — damage must be reported before you leave the airport.
Left something in the terminal (not a checked bag)? That's handled by the airport Lost & Found. Items left at a TSA security checkpoint are held by the TSA, not the airline.
03 Getting to & from STL
These are the ground-transport options connecting the airport with the city. Fares and schedules change — check the operator before you travel.
| Option | Details |
|---|---|
| MetroLink rail | Mass transportation rail system connecting the airport to the St. Louis metropolitan area. |
