AS378: Alaska flight 378
Seattle (SEA) → Baltimore (BWI) · departs 9:03a, lands 5:12p 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: SEA → BWIDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
AS378 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 → BWISeattle to Baltimore | 9:03a | 5:12p | 5h9m | Daily |
Other nonstops from Seattle to Baltimore
The departures either side of AS378. Times are Seattle time.
| Flight | Departs | Days |
|---|---|---|
| This flight AS378 | 9:03a | Daily |
| Alaska AS781 | 9:18p | Mon, Tue, Wed, Thu, Fri, Sun |
All 2 flights from SEA to BWI, by time →
Flying back from Baltimore
Alaska flies Baltimore to Seattle nonstop 13 times a week, from 7:02a to 6:15p: 7:02a AS786 · 6:15p AS379 · every nonstop BWI → SEA →
How AS378 ran in our sample
7 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 (2), Boeing 737-800 (1).
What time does AS378 leave Seattle?
AS378 is scheduled to depart Seattle (SEA) at 9:03a (daily), Seattle time, and to land in Baltimore (BWI) at about 5:12p local time, a scheduled 5h9m. Times are the published ones from the flights we sampled Oct 14–20; check Alaska for today's.
What plane is AS378?
Boeing 737-900 on 4 of the 7 AS378 flights from SEA we sampled Oct 14–20; the rest were a Boeing 737 MAX 9 or Boeing 737-800. Airlines swap aircraft, so the plane on a given day can differ.
Does AS378 fly every day?
Yes — AS378 flew Seattle to Baltimore every day of the week we sampled (Oct 14–20).
Is AS378 usually on time?
Of 7 AS378 departures from SEA we sampled Oct 14–20, 7 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; AS378 is a Alaska Airlines flight number, and Hop Nonstop is not affiliated with Alaska. Schedules change — confirm with the airline before you travel.