St. LouisWashingtonDirect FlightsSTL–DCA
St. Louis (St. Louis Lambert International Airport) to Washington (Ronald Reagan Washington National Airport).
Flight time from STL to DCA 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 05:08 to 19:55 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 STL to DCA
Our current provider sample includes 6-7/day from STL to DCA across 2 captured airlines. Captured departure terminal data is available for 2, 1.
- First departure
- 05:08
- Last departure
- 19:55
- Cadence
- ~hourly
- Captured departures/day
- 17
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 4/day | Boeing 737 · Terminal 2 · Seat map | 08:1508:30 |
Aircraft on this route
Flying the other way?
DCA to STL flights — 6-7/day on 2 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for STL to DCA, last seen June 15, 2026. Frequency uses 44 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 STL to DCA?
The STL to DCA flight time is estimated at about 2h 4m from great-circle distance until enough tracked flights are available.
How far is STL from DCA?
STL to DCA is about 717 miles by air.
Which airlines fly from STL to DCA?
Our current provider sample for STL to DCA includes Southwest Airlines, American Airlines. Confirm live timetables before booking.
What aircraft fly from STL to DCA?
Aircraft captured in our current provider sample for STL to DCA include Boeing 737, Bombardier CRJ.