STL Today
Rough day. Departures at 65%, arrivals better at 84%. Early morning flights ran 27 points better than evening. Fly 5am - 9am if you can. That window has been running at 94%.
What This Means for You
Slower day at STL. 65% on-time. About 1 in 3 departures is delayed. Check your flight status before heading to the airport. If you can rebook to an earlier departure, do it.
If you can choose your departure time: early morning flights (5am - 9am) run at 94%. Evening (6pm - 10pm) drops to 67%. That is a 27-point difference from the same airport on the same day.
Airline Performance at STL
Alaska Airlines is the most reliable carrier at STL with 85% on-time. Southwest Airlines runs 56%. That is a 29-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 27-point swing at STL. The early morning block runs at 94%. 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 91%. Hit 54% around 9pm, peaked at 100% around 5am. Currently at 65%, well below the morning numbers. A 46-point swing from best to worst today.
vs Last Week
Tracking about the same as last week. Departures at 75%, last week 77%. Mon was the worst day, Sun the best.
The Bigger Picture
STL has been bouncing between 49% and 89%. Best day was May 30 at 89%. Worst was May 18 at 49%. The norm is 74-80%, which is just how STL runs. Today's 65% is well below the norm.
About STL Delays
St. Louis Lambert International Airport (STL) is currently experiencing moderate delays with 65% on-time departures and 84% on-time arrivals. This data updates every 15 minutes from FAA sources.
St. Louis Lambert International Airport has averaged 75% 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.