| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 04 | DEN | SEA | 08:44 | 10:18 |
Landed
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| Mar 28 | DEN | SEA | 09:11 | 10:38 |
Landed
|
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| Mar 21 | DEN | SEA | 08:47 | 10:19 |
Landed
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Track > |
| Mar 14 | DEN | SEA | 08:51 | 10:29 |
Landed
|
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| Mar 07 | DEN | SEA | 09:20 | 10:51 |
Landed Late
|
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Southwest Airlines Flight WN321 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 WN321 flight from Denver to Seattle?
The average flight time from Denver to Seattle is 2 hours and 32 minutes. The flight distance is 1645 km / 1022 miles and the average flight speed is 648 km/h / 403 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN321 Denver to Seattle?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN321 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN321 arriving at?
Flight WN321 arrives at Seattle Tacoma International Airport (SEA) Terminal 3.
When was the latest WN321 flight?
The latest flight took off on Saturday, April 4th, 2026 with the flight status being Landed on 10:18.
How else can the flight WN321 be referenced as?
This Southwest Airlines flight can also be referenced as SWA321, WN0321, WN 321, SWA 321.
How often is flight WN321 delayed?
On average, 40% of all WN321 flights are delayed. The average delay is 14 minutes.
Can I get compensation for my delayed or cancelled WN321 flight or baggage issues?
If your WN321 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 WN321 Flight Tracker above for more details.
Other flights departing from Denver DEN: WN100, WN204, WN4012, WN4677
Other flights arriving at Seattle SEA: AS510, WN173, AS7005, AA5004
All flights connecting Denver DEN to Seattle SEA.