AS4: Alaska flight 4
Seattle (SEA) → Washington (DCA) · departs 8:00a, lands 4:25p local · Daily
The timetable below has every scheduled departure; for today's flight, check Alaska.
An estimate from the published timetable, not live tracking: it cannot know about delays, diversions or cancellations.
Live status at Alaska →The route
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AS4 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 14–20.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| SEA → DCASeattle to Washington | 8:00a | 4:25p | 5h25m | Daily |
Other nonstops from Seattle to Washington
The departures either side of AS4. Times are Seattle time.
All 3 flights from SEA to DCA, by time →
Flying back from Washington
Alaska flies Washington to Seattle nonstop 14 times a week, from 8:00a to 5:00p: 8:00a AS1 · 5:00p AS3 · every nonstop DCA → SEA →
How AS4 ran in our sample
6 of 7 departures left within 15 minutes of schedule (Oct 14–20). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737-800 on 4 of 7; also Boeing 737 MAX 8 (3).
What time does AS4 leave Seattle?
AS4 is scheduled to depart Seattle (SEA) at 8:00a (daily), Seattle time, and to land in Washington (DCA) at about 4:25p local time, a scheduled 5h25m. Times are the published ones from the flights we sampled Oct 14–20; check Alaska for today's.
What plane is AS4?
Boeing 737-800 on 4 of the 7 AS4 flights from SEA we sampled Oct 14–20; the rest were a Boeing 737 MAX 8. Airlines swap aircraft, so the plane on a given day can differ.
Does AS4 fly every day?
Yes — AS4 flew Seattle to Washington every day of the week we sampled (Oct 14–20).
Is AS4 usually on time?
Of 7 AS4 departures from SEA we sampled Oct 14–20, 6 left within 15 minutes of the scheduled time. That counts only flights that departed — cancellations are not in our data — and one week is a small sample, so treat it as a hint, not a rating.
More Alaska flights from Seattle
Timetable from Alaska departures we observed; AS4 is a Alaska Airlines flight number, and Hop Nonstop is not affiliated with Alaska. Schedules change — confirm with the airline before you travel.