Direct flights from Seattle to Washington
21 nonstop flights a week on 2 airlines. Zero layovers — one hop from SEA to DCA.
Flight time: about 4h32m nonstop
Which days does it fly?
When does it fly?
Departure times in Seattle local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Delta DAL786 | 7:38a | 4h20m | Thu, Sat |
| Delta DAL786 | 7:51a | 4h36m | Mon, Tue, Fri, Sun |
| Delta DAL786 | 8:07a | 4h16m | Wed |
| Alaska ASA4 | 8:12a | 4h44m | Fri, Sun |
| Alaska ASA4 | 8:19a | 4h34m | Tue, Thu, Sat |
| Alaska ASA4 | 8:25a | 4h37m | Wed |
| Alaska ASA4 | 9:10a | 4h28m | Mon |
| Alaska ASA2 | 2:00p | 4h41m | Sat–Sun |
| Alaska ASA2 | 2:10p | 4h32m | Wed, Fri |
| Alaska ASA2 | 2:17p | 4h32m | Mon, Thu |
| Alaska ASA2 | 2:50p | 4h22m | Tue |
DeltaThe route
One hop: SEA → DCADrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Seattle (SEA) to Washington (DCA)
Seattle–Tacoma International Airport (SEA) has 21 nonstop flights a week to Washington (DCA), operated by Alaska and Delta. No layovers, no connections — one hop out of SEA 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 Seattle to Washington?
The nonstop flight from Seattle (SEA) to Washington (DCA) takes about 4h32m in the air, based on recently observed nonstop departures.