STL TSA Wait Times — St. Louis

Arrive 2 hours early for a domestic flight and 3 hours for an international one. That covers bag drop, security, and the walk to your gate with room to breathe. On busy mornings and holidays, add about 30 minutes — and check the live STL wait and your Leave-By Time before you head out so you can adjust.

Yes. St. Louis (STL) runs TSA PreCheck lanes, and we show the PreCheck wait right next to the standard wait on each checkpoint. PreCheck usually moves faster because you keep your shoes, belt, and laptop with you. If a PreCheck lane is closed, its card shows a dash, so you can pick another checkpoint.

The fastest STL checkpoint changes through the day, so we rank them live. When more than one is open, the lowest number is your quickest line right now. We also flag the checkpoint closest to your gates, so you can weigh a few saved minutes against a longer walk.

We show CLEAR lane waits at STL whenever a checkpoint reports them. If you see a CLEAR time on a checkpoint card, that lane is open, and your membership gets you to the ID check faster. CLEAR confirms who you are, then hands you to the screening line — so it pairs best with PreCheck. Not every checkpoint runs CLEAR, so check the card before you count on it.

It depends on the hour, so we show the STL security wait live and refresh it through the day. When a checkpoint feed is reporting, you get the real current number; when it goes quiet, we fall back to the typical wait for that hour and label it predicted. Check the forecast to find the calmer windows before you go.

The cheapest STL parking is usually an off-airport lot with a shuttle, not the garage at the curb. We compare STL lots by price so you can book a spot and fold the drive and shuttle into your Leave-By Time. The closest option saves walking; the cheapest saves money — pick the trade-off that fits your trip.