Your Guide to St. Louis Airport TSA Wait Times
If you want the smoothest journey through security at St. Louis Lambert International Airport, the single most useful tip is to avoid an early morning flight. The busiest time at the TSA checkpoints is 5 am, when lines are at their longest. By flying just a little later in the day, you can often save yourself valuable time and enjoy a more relaxed start to your trip.
The Busiest Times at STL
While waits at St. Louis are very manageable compared to many airports, they do have predictable peaks. The early morning sees the biggest rush of passengers heading for the first wave of departures. If you’re travelling on a Friday, expect slightly more company than usual.
- Busiest Day of the Week: Friday sees the highest average waits, though they still only clock in at around 6 minutes.
- Busiest Time of Day: The hour starting at 5 am is the most congested, with an average wait of 10 minutes.
- Peak Waits to Expect: During these busy spells, be prepared for queues to reach up to 25 minutes. The longest recorded wait was 29 minutes.
The Quietest Times at STL
For those with flexible travel plans, choosing the right day and time can mean walking straight through security with almost no delay. The airport is noticeably calmer as the day progresses, particularly from the mid-afternoon onwards.
- Quietest Day of the Week: Monday is typically the quietest day for travel, with average waits of just 5 minutes.
- Quietest Time of Day: If you’re on a late flight, you’re in luck. The quietest hour is 10 pm, when the average wait drops to a mere 1 minute.
Our Recommendation
Overall, St. Louis Lambert International Airport is remarkably efficient. Data shows that 99% of travellers get through security in under 15 minutes, which is fantastic news for passengers. However, to make your trip as seamless as possible, we recommend avoiding flights that depart around the 5 am rush hour. If your flight is scheduled for that time, just be sure to give yourself a little extra breathing room. For travel at almost any other time of day, you can feel confident of a swift and stress-free security experience.