| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 12 | SEA | FAI | 23:27 | 01:29 |
Landed
|
Track > |
| May 11 | SEA | FAI | 23:11 | 01:22 |
En-Route
|
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| May 10 | SEA | FAI | 23:12 | 01:32 |
Landed
|
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| May 09 | SEA | FAI | 23:18 | 01:27 |
Landed
|
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| May 08 | SEA | FAI | 23:31 | 01:39 |
Landed
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| May 06 | SEA | FAI | 23:10 | 02:04 |
Unknown
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| May 05 | SEA | FAI | 23:00 | 01:43 |
Unknown
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| May 04 | SEA | FAI | 23:01 | 01:33 |
Unknown
|
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| May 03 | SEA | FAI | 22:57 | 01:53 |
Unknown
|
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| May 02 | SEA | FAI | 22:50 | 01:40 |
Unknown
|
Track > |
Alaska Airlines Flight AS421 connects Seattle, United States to Fairbanks, United States, taking off from Seattle Tacoma International Airport SEA and landing at Fairbanks International Airport FAI.
How long is the AS421 flight from Seattle to Fairbanks?
The average flight time from Seattle to Fairbanks is 3 hours and 28 minutes. The flight distance is 2461 km / 1529 miles and the average flight speed is 715 km/h / 444 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS421 Seattle to Fairbanks?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS421 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AS421 flight?
The latest flight took off on Wednesday, May 13th, 2026 with the flight status being Landed on 01:29.
How else can the flight AS421 be referenced as?
This Alaska Airlines flight can also be referenced as ASA421, AS0421, AS 421, ASA 421.
How often is flight AS421 delayed?
On average, 30% of all AS421 flights are delayed. The average delay is 11 minutes.
Can I get compensation for my delayed or cancelled AS421 flight or baggage issues?
If your AS421 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 AS421 Flight Tracker above for more details.
Flight AS421 is code-shared by 2 airlines using the flight numbers AA7415, DE5272
Other flights departing from Seattle SEA: AS1526, AS2281, AS487, AS3393
Other flights arriving at Fairbanks FAI: 5Y592, 5Y8539, AS469, KO121
All flights connecting Seattle SEA to Fairbanks FAI.