| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 19 | SEA | BWI | 09:03 | 17:04 |
Scheduled
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| Jul 18 | SEA | BWI | 09:41 | 17:20 |
Delayed
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| Jul 17 | SEA | BWI | 09:24 | 17:01 |
Landed
|
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| Jul 16 | SEA | BWI | 10:42 | 18:03 |
Delayed
|
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| Jul 15 | SEA | BWI | 09:19 | 16:54 |
Landed
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| Jul 14 | SEA | BWI | 09:20 | 16:57 |
Landed
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| Jul 13 | SEA | BWI | 09:47 | 17:17 |
Landed
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| Jul 12 | SEA | BWI | 09:15 | 16:44 |
Landed
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| Jul 11 | SEA | BWI | 09:18 | 16:52 |
Landed
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| Jul 10 | SEA | BWI | 09:09 | 16:50 |
Landed
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Alaska Airlines Flight AS378 connects Seattle, United States to Baltimore, United States, taking off from Seattle Tacoma International Airport SEA and landing at Baltimore Washington International Airport BWI.
How long is the AS378 flight from Seattle to Baltimore?
The average flight time from Seattle to Baltimore is 4 hours and 33 minutes. The flight distance is 3748 km / 2329 miles and the average flight speed is 815 km/h / 506 mph.
How many AS378 flights are operated per week?
7 flights per week. The flight AS378 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS378 Seattle to Baltimore?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS378 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AS378 flight?
The latest flight took off on Saturday, July 18th, 2026 with the flight status being En-Route on 17:20.
How else can the flight AS378 be referenced as?
This Alaska Airlines flight can also be referenced as ASA378, AS0378, AS 378, ASA 378.
How often is flight AS378 delayed?
On average, 30% of all AS378 flights are delayed. The average delay is 29 minutes.
Can I get compensation for my delayed or cancelled AS378 flight or baggage issues?
If your AS378 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our AS378 Flight Tracker above for more details.
Other flights departing from Seattle SEA: AS7006, DL3678, AS334, AS422
Other flights arriving at Baltimore BWI: WN3990, WN2687, DL2480, WN962
All flights connecting Seattle SEA to Baltimore BWI.
