American AirlinesAA50% on time
Flights AA4776 08:40 Mo Tu We Th Fr · AA5629 15:59 daily · AA5451 19:59 Mo Tu We Th Fr Su
live
Direct flights from Washington (DCA) to St Louis (STL): 14 nonstop departures observed each week across 2 airlines. 48% of the last 23 operated flights arrived within 15 minutes of schedule. The median arrival is 18 minutes late. No cancellations were recorded across the 23 tracked flights. The nonstop covers 1,154 km, an estimated 1 hour 59 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and St Louis. Updated 7 September 2026 at 11:18 UTC.
DCA
Washington
smooth · +12
STL
St Louis
smooth · +0
1,154 km · ~1h 59m est.
Runs rough · 2 airlines · 14x weekly · nonstop
48% on time
of the last 23 operated DCA → STL flights arrived within 15 minutes
Median arrival delay is +18 min. 0 of 23 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+18 minacross the last 23 operated legs
Flight time~1h 59mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 23
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesSouthwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at DCA: 47% odds of a 15+ minute delay and around +13 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Washington to St Louis route actually runs
Pro Flight Search records official board updates for nonstop DCA to STL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Washington (DCA) to St Louis (STL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/DCA-STL
DCA to STL questions
Is DCA–STL running on time right now?
Smooth skies ahead. The departure side at DCA is the weaker end, route health score 92/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on DCA–STL?
Operators schedule morning departures around 08:00 and evening departures around 18:50 from DCA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STL delay card to confirm conditions when you'd arrive.
How long is the flight from DCA to STL?
Great-circle distance is 1,154 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 111–129 min gate-to-gate on this route.
How often does DCA–STL fly?
2 carriers operate this route, around 44 flights a week between them. Compare carrier days and times in the airline list above.
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