What are TSA wait times at STL?

Current TSA security wait at STL is About 12-18 minutes right now. The fastest time to go through security is 6 AM (about 5 min). The busiest time is 7 PM (17-23 minutes). Weekends tend to be lighter.

How busy is St. Louis Lambert International right now?

Current TSA security wait at STL is About 12-18 minutes right now. Check the live conditions, weather, and FAA delay status above for a full picture of how busy STL is right now.

What is the average delay time at St. Louis Lambert International?

When flights at STL (St. Louis Lambert International) are delayed, the average delay is about 42 minutes. Overall, 80% of flights arrive on time. About 1.8% of flights are cancelled.

What causes the most delays at St. Louis Lambert International?

The most common reason for delays here is weather. At STL, 80% of flights are on time, and when delays occur they average 42 minutes.

Is it safe to book a tight connection at St. Louis Lambert International?

STL is fairly reliable, so a 60-minute domestic connection is usually fine. For international flights, allow at least 90 minutes.

What's the best time to fly from St. Louis Lambert International?

Early morning flights (before 8 AM) tend to have the best on-time performance at most airports, including STL. For shorter security lines, aim for 6 AM (about 5 min). Midweek flights (Tuesday and Wednesday) also tend to see fewer delays than weekend or Monday departures.

STL

St. Louis Lambert International — St. Louis

St. Louis Lambert International (STL) has an on-time arrival rate of about 80%. When flights are delayed, the average wait is around 42 minutes. The most common reason for delays here is weather. Roughly 1.8% of flights are cancelled. The typical taxi-out time from gate to takeoff is about 12 minutes. TSA security wait is currently About 12-18 minutes right now. The fastest time through security is 6 AM (about 5 min). The busiest period is 7 PM (17-23 minutes).

Source: Bureau of Transportation Statistics, FAA NASSTATUS. Updated March 2026.

Last updated: March 2026

Checking conditions so you don't have to...

Flights here are on time most of the time. About 80% arrive within 15 minutes of schedule.

The most common reason for delays here is weather.

Planes usually taxi out in a reasonable time. The typical wait from gate to takeoff is about 12 minutes.

This airport rainy (~11 precip days/month).

Among major airlines, F9 has the most complaints (23.2/100k) while WN has the fewest (1.5/100k).

How Busy Is STL Right Now?

Checking live status...

STL on-time performance by month

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TSA Wait Times at STL

TSA Security Wait — Our Model

About 12-18 minutes right now

Fastest

6 AM (about 5 min)

Busiest

7 PM (17-23 minutes)

Weekends tend to be lighter.

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TSA FAQ — STL

Source: TSA official guidelines and r/tsa community