STL Today
Clean day, better than the weekly average. Departures at 97%, arrivals worse at 82%. Early morning flights ran 34 points better than evening. Fly 5am - 9am if you can. That window has been running at 99%.
What This Means for You
Good day to fly from STL. 97% of departures are on time. Your flight will probably leave on schedule. Normal operations.
If you can choose your departure time: early morning flights (5am - 9am) run at 99%. Evening (6pm - 10pm) drops to 65%. That is a 34-point difference from the same airport on the same day.
Airline Performance at STL
American Airlines is the most reliable carrier at STL with 93% on-time. United Airlines runs 52%. That is a 41-point spread. If you have a choice, the airline matters.
STL Flight Board
Live departures and arrivals at St. Louis Lambert International Airport.
| Status | Airline | Flight | Destination | Sched | Updated | Gate |
|---|---|---|---|---|---|---|
Pick Your Window
Early Morning vs Evening is a 34-point swing at STL. The early morning block runs at 99%. If you have any say in your departure time, this is the biggest thing you can control.
Through the Day
Morning held up fine at 97%. 10pm is where it broke down, dropping to 22%. A 78-point swing from best to worst today.
vs Last Week
This week is 3 points worse on departures (80% vs 83%). Arrivals down 5 points too. Fri was the worst day, Wed the best.
The Bigger Picture
STL has been bouncing between 48% and 93%. Best day was Sep 6 at 93%. Worst was Aug 6 at 48%. The norm is 74-80%, which is just how STL runs. Today's 97% is a good day by STL standards.
About STL Delays
St. Louis Lambert International Airport (STL) is currently running on time with 97% on-time departures and 82% on-time arrivals. This data updates every 15 minutes from FAA sources.
St. Louis Lambert International Airport has averaged 80% on-time departures this week, making it moderately reliable. Performance varies by time of day and weather conditions.
St. Louis Lambert International Airport is one of 179 FAA-monitored airports with real-time delay tracking. Data includes departure and arrival on-time percentages, updated every 15 minutes, with historical trends available for the past 90 days.
Early morning departures from St. Louis Lambert International Airport typically have the highest on-time rates. Delays tend to accumulate throughout the day as cascading effects from earlier disruptions compound. Check the 24-hour trend chart above for today's pattern.