STL Terminal 1 TSA Wait Times
Live security wait times for Terminal 1 at St. Louis Lambert International Airport · Concourses A & C
✈️ Airlines at Terminal 1
Airline terminal assignments can change — confirm your terminal on your boarding pass or airline app before heading to security.
Get Your Recommended Departure Time for STL
FAQ: Terminal 1 at STL
Which airlines use Terminal 1 at STL?
Terminal 1, the domed main terminal, serves American, Delta, United, Alaska, and Air Canada from Concourses A and C. Southwest operates from Terminal 2, about a mile away.
Does STL Terminal 1 have TSA PreCheck?
Yes, TSA PreCheck screening is available at Terminal 1, which has separate checkpoints for the A Gates and C Gates with different operating hours. Check which concourse your flight uses so you pick the right checkpoint.
How far apart are STL's terminals?
Terminals 1 and 2 are separate buildings roughly a mile apart, connected landside by shuttle and the MetroLink station but not airside. If you're flying Southwest, go directly to Terminal 2 to avoid a 10-15 minute transfer.