Historical on-time performance
Washington to St. Louis
Flights on DCA–STL arrive on time 71% of the time over the last 12 months.
based on 2,224 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time79%Medianon timep9030 minCancel1.1%Flights91
- Southwest AirlinesbestOn-time75%Medianon timep9045 minCancel1.2%Flights1,399
- American AirlinesOn-time66%Medianon timep9090 minCancel2.0%Flights204
- PSA AirlinesOn-time61%Medianon timep9095 minCancel5.8%Flights530
Why flights run late
Delay causes
- Airline30%
- Weather7%
- Air traffic (NAS)11%
- Late aircraft51%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline13%
- Weather70%
- Air traffic (NAS)15%
- Security2%
Most cancellations here are attributed to Weather. Shares are among 53 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DCA → STL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 58% to 86% on time.
- Mornings86% on time · p90 20 min · 1,849 flights
- Middays84% on time · p90 25 min · 1,389 flights
- Afternoons72% on time · p90 45 min · 1,687 flights
- Evenings65% on time · p90 80 min · 1,601 flights
- Overnights58% on time · p90 105 min · 458 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 81% on time.
- Saturdays81% on time · p90 40 min · 649 flights
- Tuesdays79% on time · p90 45 min · 1,083 flights
- Wednesdays76% on time · p90 45 min · 1,084 flights
- Thursdays75% on time · p90 40 min · 1,075 flights
- Mondays75% on time · p90 50 min · 1,082 flights
- Fridays72% on time · p90 55 min · 1,087 flights
- Sundays71% on time · p90 55 min · 924 flights
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