STL Today
Decent day, better than the weekly average. Departures at 80%, arrivals worse at 62%. Early morning flights ran 41 points better than evening. Fly 5am - 9am if you can. That window has been running at 98%.
What This Means for You
Mostly normal at STL. 80% on-time means roughly 1 in 5 flights is late. If you have a tight connection, add buffer time. Afternoon departures tend to stack up.
If you can choose your departure time: early morning flights (5am - 9am) run at 98%. Evening (6pm - 10pm) drops to 57%. That is a 41-point difference from the same airport on the same day.
Airline Performance at STL
Aer Lingus is the most reliable carrier at STL with 95% on-time. Air New Zealand runs 35%. That is a 60-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 41-point swing at STL. The early morning block runs at 98%. 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 89%. 12am is where it broke down, dropping to 0%. A 100-point swing from best to worst today.
vs Last Week
Down 5 points from last week (67% vs 72%). Arrivals roughly the same. Fri was the worst day, Wed the best.
The Bigger Picture
STL has been bouncing between 49% and 90%. Best day was Apr 9 at 90%. Worst was May 18 at 49%. The norm is 77-83%, which is just how STL runs. Today is right in line with the average.
About STL Delays
St. Louis Lambert International Airport (STL) is currently running on time with 80% on-time departures and 62% on-time arrivals. This data updates every 15 minutes from FAA sources.
St. Louis Lambert International Airport has averaged 67% on-time departures this week, making it frequently delayed. 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.