AS375: Alaska flight 375
Washington Dulles (IAD) → Seattle (SEA) · departs 9:38a, lands 12:20p 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
One hop: IAD → SEADrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
AS375 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 |
|---|---|---|---|---|
| IAD → SEAWashington Dulles to Seattle | 9:38a | 12:20p | 5h42m | Daily |
Other nonstops from Washington Dulles to Seattle
The departures either side of AS375. Times are Washington Dulles time.
| Flight | Departs | Days |
|---|---|---|
| Alaska AS409 | 7:02a | Daily |
| Delta DL1015 | 7:05a | Daily |
| This flight AS375 | 9:38a | Daily |
| United UA1824 | 1:05p | Daily |
| Alaska AS737 | 5:33p | Mon, Thu, Fri, Sun |
| United UA1128 | 5:45p | Daily |
All 6 flights from IAD to SEA, by time →
Flying back from Seattle
Alaska flies Seattle to Washington Dulles nonstop 18 times a week, from 8:15a to 9:36p: 8:15a AS737 · 3:56p AS366 · every nonstop SEA → IAD →
How AS375 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 737-900 on 4 of 7; also Boeing 737 MAX 9 (3).
What time does AS375 leave Washington Dulles?
AS375 is scheduled to depart Washington Dulles (IAD) at 9:38a (daily), Washington Dulles time, and to land in Seattle (SEA) at about 12:20p local time, a scheduled 5h42m. Times are the published ones from the flights we sampled Oct 14–20; check Alaska for today's.
What plane is AS375?
Boeing 737-900 on 4 of the 7 AS375 flights from IAD we sampled Oct 14–20; the rest were a Boeing 737 MAX 9. Airlines swap aircraft, so the plane on a given day can differ.
Does AS375 fly every day?
Yes — AS375 flew Washington Dulles to Seattle every day of the week we sampled (Oct 14–20).
Is AS375 usually on time?
Of 7 AS375 departures from IAD 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 Washington Dulles
Timetable from Alaska departures we observed; AS375 is a Alaska Airlines flight number, and Hop Nonstop is not affiliated with Alaska. Schedules change — confirm with the airline before you travel.