WashingtonSt. LouisDirect FlightsDCA–STL
Washington (Ronald Reagan Washington National Airport) to St. Louis (St. Louis Lambert International Airport).
Flight time from DCA to STL is estimated at about 2h 4m, based on the 717-mile great-circle distance. Our current captured departure sample includes 6-7/day across 2 captured airlines, with Southwest Airlines appearing most often in that sample. Captured departure times run from 08:00 to 20:00 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Captured freq. | Type |
|---|---|---|---|
| ~2h 4m Estimated from great-circle distance — no tracked flights yet. | 717 mi | 6-7/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Captured airlines for DCA to STL
Our current provider sample includes 6-7/day from DCA to STL across 2 captured airlines. Captured departure terminal data is available for 1, 2.
- First departure
- 08:00
- Last departure
- 20:00
- Cadence
- ~hourly
- Captured departures/day
- 13
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 3-4/day | Boeing 737 · Terminal 1 · Seat map | 08:0012:00 |
Aircraft on this route
Flying the other way?
STL to DCA flights — 6-7/day on 2 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for DCA to STL, last seen June 15, 2026. Frequency uses 43 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.
Route FAQ
How long is the flight from DCA to STL?
The DCA to STL flight time is estimated at about 2h 4m from great-circle distance until enough tracked flights are available.
How far is DCA from STL?
DCA to STL is about 717 miles by air.
Which airlines fly from DCA to STL?
Our current provider sample for DCA to STL includes Southwest Airlines, American Airlines. Confirm live timetables before booking.
What aircraft fly from DCA to STL?
Aircraft captured in our current provider sample for DCA to STL include Boeing 737, Bombardier CRJ.