Alaska Airlines
AS378Seattle to Baltimore
Alaska Airlines flight AS378 flies from Seattle Tacoma (SEA) to Baltimore (BWI), 3,748 km. Over August 2025 to July 2026 it usually arrives about 4 minutes early: 84% of 365 flights arrived within 15 minutes of schedule and 0.5% were cancelled (US Department of Transportation data).
On-time record, last 12 months
84%
on time (within 15 min)
7%
more than 30 min late
0.5%
cancelled
-4 min
average arrival vs schedule
Every operation of AS378, August 2025 to July 2026: 365 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as AS378
- Seattle Tacoma (SEA) to Baltimore (BWI)337 flights
- Seattle Tacoma (SEA) to Anchorage (ANC)28 flights
Other flights from Seattle to Baltimore
More about Seattle Tacoma (SEA) and Baltimore (BWI).
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