Direct flights from St. Louis to Washington
47 nonstop flights a week on 2 airlines. Zero layovers — one hop from STL to DCA.
Flight time: about 1h44m nonstop
Which days does it fly?
When does it fly?
Departure times in St. Louis local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Southwest SWA8029 | 5:22a | 1h36m | Wed |
| Republic Airways RPA4634 | 6:02a | 1h29m | Mon–Wed |
| Republic Airways RPA4634 | 6:11a | 1h25m | Thu, Fri, Sun |
| Republic Airways RPA4634 | 6:56a | 1h24m | Sat |
| Southwest SWA1930 | 7:59a | 1h42m | Sun |
| Southwest SWA4963 | 8:23a | 1h40m | Thu |
| Southwest SWA1930 | 8:33a | 1h36m | Tue |
| Southwest SWA1930 | 8:39a | 1h46m | Mon, Wed, Fri |
| Southwest SWA1930 | 9:32a | 1h40m | Sat |
| Republic Airways RPA4436 | 10:49a | 1h40m | Mon, Wed, Thu |
| Republic Airways RPA4436 | 11:10a | 1h33m | Fri, Sun |
| Republic Airways RPA4436 | 12:08p | 1h30m | Tue |
| Southwest SWA3015 | 1:15p | 1h40m | Sun |
| Southwest SWA2999 | 1:18p | 1h46m | Mon, Wed |
| Southwest SWA3522 | 1:39p | 1h40m | Thu |
| Southwest SWA2999 | 1:46p | 1h45m | Tue, Fri |
| Southwest SWA1965 | 3:20p | 1h46m | Sat |
| Southwest SWA1965 | 3:33p | 1h45m | Tue |
| Southwest SWA1965 | 3:37p | 1h39m | Wed |
| Southwest SWA2301 | 4:13p | 1h46m | Sun |
| Southwest SWA2301 | 4:23p | 1h46m | Thu |
| Southwest SWA2301 | 4:44p | 1h35m | Fri |
| Southwest SWA2301 | 5:05p | 1h45m | Mon |
| American AAL2286 | 5:11p | 1h47m | Mon, Tue, Thu |
| American AAL2286 | 5:17p | 1h44m | Fri, Sun |
| American AAL2286 | 6:14p | 1h46m | Wed |
| Southwest SWA1493 | 7:15p | 1h45m | Tue |
| Southwest SWA1493 | 7:29p | 1h33m | Wed |
| Southwest SWA3825 | 8:08p | 1h46m | Sun |
| Southwest SWA3825 | 8:16p | 1h53m | Sat |
| Southwest SWA3825 | 8:32p | 1h48m | Thu |
| Southwest SWA3825 | 8:38p | 1h51m | Mon |
| Southwest SWA3825 | 8:48p | 1h49m | Fri |
American
SouthwestThe route
One hop: STL → DCADrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from St. Louis (STL) to Washington (DCA)
St. Louis Lambert International Airport (STL) has 47 nonstop flights a week to Washington (DCA), operated by American and Southwest. No layovers, no connections — one hop out of STL and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from St. Louis to Washington?
The nonstop flight from St. Louis (STL) to Washington (DCA) takes about 1h44m in the air, based on recently observed nonstop departures.