St. Louis Lambert International Airport
St Louis, United States
Terminals & Checkpoints
STL Historical Analytics
90-day wait time patterns, hourly breakdowns, and best/worst time predictions for St. Louis Lambert International Airport.
Unlock with PremiumAbout St. Louis Lambert International Airport
St. Louis Lambert International Airport (STL) serves St Louis in United States. Travelers flying through STL can expect average security wait times of around 54 minutes, though this varies by time of day and season.
TSA PreCheck is available at STL, letting enrolled travelers skip the standard screening line. PreCheck passengers typically wait about 8 minutes compared to the 54-minute standard line.
STL Airport FAQs
How long is the security line at STL?
Security wait times at St. Louis Lambert International Airport vary by time of day and day of week. Check the wait time cards above for current estimates. Peak hours (6-9 AM, 4-7 PM) typically have longer waits.
Does STL have TSA PreCheck?
Yes, St. Louis Lambert International Airport has TSA PreCheck lanes available. PreCheck members typically experience significantly shorter security wait times.
How early should I arrive at STL?
For domestic flights, arrive at least 2 hours early. For international flights, arrive 3 hours early. During peak travel periods and holidays, add an extra 30-60 minutes.
What terminals does STL have?
St. Louis Lambert International Airport has 2 terminals: Terminal 2, Terminal 1.
Departure Information
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Peak Hours
Tips for STL
- Arrive at least 90 minutes early for domestic and 150 minutes for international flights.
- Security is typically busiest 6-9 AM and 4-7 PM. Midday flights (11 AM-2 PM) usually have the shortest queues.
- TSA PreCheck is available here. Enrolled travelers typically wait about 2 minutes — roughly half the standard line.
- Check-in online and have your boarding pass ready on your phone to save time at the airport.
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How long is the security line at STL?
Security wait times at St. Louis Lambert International Airport vary by time of day and day of week. Peak hours (6-9 AM, 4-7 PM) typically see the longest waits. FlightQueue provides real-time estimates based on historical data and crowd reports.
What is the best time to go through security at STL?
The best times for shorter security lines at St. Louis Lambert are typically mid-morning (10-11 AM) and early afternoon (1-3 PM). Avoid the morning rush (6-9 AM) and evening peak (4-7 PM).
How early should I arrive at STL?
For domestic flights at St. Louis Lambert, arrive 1.5-2 hours before departure. For international flights, arrive 2.5-3 hours early. During peak travel periods, add an extra 30 minutes.
Does STL have TSA PreCheck?
Yes, St. Louis Lambert International Airport offers TSA PreCheck lanes for faster security screening. Check FlightQueue for the latest checkpoint data.