| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 16 | DEN | SEA | 06:21 | 07:52 |
Landed
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| Jun 15 | DEN | SEA | 06:06 | 07:31 |
Landed
|
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| Jun 14 | DEN | SEA | 06:13 | 07:32 |
Landed
|
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| Jun 13 | DEN | SEA | 06:17 | 07:41 |
Landed
|
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| Jun 12 | DEN | SEA | 06:17 | 07:47 |
Landed
|
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| Jun 11 | DEN | SEA | 06:12 | 07:43 |
Landed
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| Jun 10 | DEN | SEA | 06:21 | 07:59 |
Landed
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| Jun 09 | DEN | SEA | 06:10 | 07:32 |
Landed
|
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| Jun 08 | DEN | SEA | 06:25 | 07:51 |
Landed
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| Jun 07 | DEN | SEA | 06:49 | 08:15 |
Landed
|
Track > |
Alaska Airlines Flight AS643 connects Denver, United States to Seattle, United States, taking off from Denver International Airport DEN and landing at Seattle Tacoma International Airport SEA.
How long is the AS643 flight from Denver to Seattle?
The average flight time from Denver to Seattle is 2 hours and 27 minutes. The flight distance is 1645 km / 1022 miles and the average flight speed is 671 km/h / 417 mph.
How many AS643 flights are operated per week?
6 flights per week. The flight AS643 is operated on Monday, Tuesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS643 Denver to Seattle?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS643 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AS643 flight?
The latest flight took off on Tuesday, June 16th, 2026 with the flight status being Landed on 07:52.
How else can the flight AS643 be referenced as?
This Alaska Airlines flight can also be referenced as ASA643, AS0643, AS 643, ASA 643.
How often is flight AS643 delayed?
On average, 10% of all AS643 flights are delayed. The average delay is 10 minutes.
Can I get compensation for my delayed or cancelled AS643 flight or baggage issues?
If your AS643 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 AS643 Flight Tracker above for more details.
Flight AS643 is code-shared by 1 airline using the flight number QR2036
Other flights departing from Denver DEN: F92440, UA1093, WN2412, WN4331
Other flights arriving at Seattle SEA: AS563, AS1529, AS323, WN3397
All flights connecting Denver DEN to Seattle SEA.
