St. Louis (STL) Delays in 2025
77.1% on-time departures, 79.8% on-time arrivals in 2025
64,202Flights
77.1%Departures on-time
16.3 minAvg dep. delay
79.8%Arrivals on-time
13.9 minAvg arr. delay
1.4%Cancelled
Delay causes
- Air carrier29.4%
- Extreme weather4.9%
- National Aviation System21.4%
- Security0.1%
- Late-arriving aircraft44.2%
← 2024 · St. Louis (STL) overview
On-time = arrival within 15 minutes of schedule, per U.S. DOT definitions. Source: Bureau of Transportation Statistics (public domain). Delay-cause attribution is reported by carriers since June 2003.