| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 08 | PDX | SEA | 19:52 | 20:28 |
Landed
|
Track > |
| Jun 07 | PDX | SEA | 19:42 | 20:18 |
Landed
|
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| Jun 06 | PDX | SEA | 20:15 | 20:53 |
Landed Late
|
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| Jun 05 | PDX | SEA | 19:34 | 20:06 |
Landed
|
Track > |
| Jun 04 | PDX | SEA | 19:42 | 20:12 |
Landed
|
Track > |
| Jun 03 | PDX | SEA | 20:03 | 20:37 |
Landed
|
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| Jun 02 | PDX | SEA | 19:39 | 20:11 |
Landed
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| Jun 01 | PDX | SEA | 20:03 | 20:30 |
Landed
|
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| May 31 | PDX | SEA | 19:55 | 20:24 |
Landed
|
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| May 30 | PDX | SEA | 19:37 | 20:04 |
Landed
|
Track > |
Alaska Airlines Flight AS3121 connects Portland, United States to Seattle, United States, taking off from Portland International Airport PDX and landing at Seattle Tacoma International Airport SEA.
How long is the AS3121 flight from Portland to Seattle?
The average flight time from Portland to Seattle is 32 minutes. The flight distance is 208 km / 129 miles and the average flight speed is 394 km/h / 245 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS3121 Portland to Seattle?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS3121 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AS3121 flight?
The latest flight took off on Tuesday, June 9th, 2026 with the flight status being Landed on 20:28.
How else can the flight AS3121 be referenced as?
This Alaska Airlines flight can also be referenced as ASA3121, AS 3121, ASA 3121.
How often is flight AS3121 delayed?
On average, 40% of all AS3121 flights are delayed. The average delay is 11 minutes.
Can I get compensation for my delayed or cancelled AS3121 flight or baggage issues?
If your AS3121 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 AS3121 Flight Tracker above for more details.
Flight AS3121 is code-shared by 4 airlines using the flight numbers BA7536, DE5087, FI7636, JX7023
Other flights departing from Portland PDX: AS1455, AS3412, AS1425, G43230
Other flights arriving at Seattle SEA: AS584, AS574, AS2295, AS2433
All flights connecting Portland PDX to Seattle SEA.