| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 21 | PHX | SEA | 13:42 | 16:19 |
Delayed
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United Airlines Flight UA3921 connects Phoenix, United States to Seattle, United States, taking off from Phoenix Sky Harbor International Airport PHX and landing at Seattle Tacoma International Airport SEA.
How long is the UA3921 flight from Phoenix to Seattle?
The average flight time from Phoenix to Seattle is 2 hours and 37 minutes. The flight distance is 1782 km / 1107 miles and the average flight speed is 681 km/h / 423 mph.
How many UA3921 flights are operated per week?
1 flight per week. The flight UA3921 is operated on Wednesday.
What is the On-Time Performance (OTP) of United Airlines Flight UA3921 Phoenix to Seattle?
The Airportia On-Time Performance Rating for United Airlines Flight UA3921 is 4.1/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA3921 flight?
The latest flight took off on Wednesday, October 21st, 2026 with the flight status being En-Route on 16:19.
How else can the flight UA3921 be referenced as?
This United Airlines flight can also be referenced as UAL3921, UA 3921, UAL 3921.
How often is flight UA3921 delayed?
On average, 100% of all UA3921 flights are delayed. The average delay is 54 minutes.
Can I get compensation for my delayed or cancelled UA3921 flight or baggage issues?
If your UA3921 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 UA3921 Flight Tracker above for more details.
Other flights departing from Phoenix PHX: UA3914, WN971, WN2576, AA2228
Other flights arriving at Seattle SEA: DE2032, DL1564, OO3679, OO3342
All flights connecting Phoenix PHX to Seattle SEA.