| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Feb 11 | BOS | SEA | 19:24 | 22:01 |
Landed
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Track > |
| Feb 10 | BOS | SEA | 19:46 | 22:45 |
Landed Late
|
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| Feb 09 | BOS | SEA | 19:08 | 22:12 |
Landed
|
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| Feb 08 | BOS | SEA | 18:59 | 21:51 |
Landed
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| Feb 07 | BOS | SEA | 19:18 | 22:04 |
Landed
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| Feb 06 | BOS | SEA | 20:06 | 22:48 |
Landed Late
|
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| Feb 05 | BOS | SEA | 19:20 | 22:06 |
Landed
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| Feb 04 | BOS | SEA | 19:16 | 21:57 |
Landed
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| Feb 03 | BOS | SEA | 19:16 | 21:57 |
Landed
|
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| Feb 02 | BOS | SEA | 18:55 | 21:38 |
Landed
|
Track > |
Alaska Airlines Flight AS309 connects Boston, United States to Seattle, United States, taking off from Boston Logan International Airport BOS and landing at Seattle Tacoma International Airport SEA.
How long is the AS309 flight from Boston to Seattle?
The average flight time from Boston to Seattle is 5 hours and 47 minutes. The flight distance is 4005 km / 2489 miles and the average flight speed is 693 km/h / 430 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS309 Boston to Seattle?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS309 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight AS309 arriving at?
Flight AS309 arrives at Seattle Tacoma International Airport (SEA) Terminal B.
When was the latest AS309 flight?
The latest flight took off on Thursday, February 12th, 2026 with the flight status being Landed on 22:01.
How else can the flight AS309 be referenced as?
This Alaska Airlines flight can also be referenced as ASA309, AS0309, AS 309, ASA 309.
How often is flight AS309 delayed?
On average, 20% of all AS309 flights are delayed. The average delay is 29 minutes.
Can I get compensation for my delayed or cancelled AS309 flight or baggage issues?
If your AS309 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 AS309 Flight Tracker above for more details.
Flight AS309 is code-shared by 3 airlines using the flight numbers HA4822, QR2967, TN2334
Other flights departing from Boston BOS: UA521, AA4727, AA5875, AC2562
Other flights arriving at Seattle SEA: AS519, AA2311, AS3036, AS9981
All flights connecting Boston BOS to Seattle SEA.