| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 05 | IAD | DEN | 14:27 | 16:10 |
Landed
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Track > |
| Jan 04 | IAD | DEN | 14:39 | 16:14 |
Landed
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| Jan 03 | IAD | DEN | 14:30 | 15:56 |
Landed
|
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| Jan 02 | IAD | DEN | 14:25 | 15:48 |
Landed
|
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| Jan 01 | IAD | DEN | 15:34 | 17:15 |
Landed Late
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| Dec 31 | IAD | DEN | 14:51 | 16:19 |
Landed
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| Dec 30 | IAD | DEN | 14:39 | 16:10 |
Landed
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| Dec 29 | IAD | DEN | 14:31 | 15:57 |
Landed
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| Dec 28 | IAD | DEN | 16:22 | 18:01 |
Delayed
|
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| Dec 27 | IAD | DEN | 14:39 | 16:15 |
Landed
|
Track > |
United Airlines Flight UA2121 connects Washington, United States to Denver, United States, taking off from Washington Dulles International Airport IAD and landing at Denver International Airport DEN.
How long is the UA2121 flight from Washington to Denver?
The average flight time from Washington to Denver is 3 hours and 32 minutes. The flight distance is 2331 km / 1449 miles and the average flight speed is 658 km/h / 409 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA2121 Washington to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA2121 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA2121 flight?
The latest flight took off on Monday, January 5th, 2026 with the flight status being Landed on 16:10.
How else can the flight UA2121 be referenced as?
This United Airlines flight can also be referenced as UAL2121, UA 2121, UAL 2121.
How often is flight UA2121 delayed?
On average, 20% of all UA2121 flights are delayed. The average delay is 61 minutes.
Can I get compensation for my delayed or cancelled UA2121 flight or baggage issues?
If your UA2121 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 UA2121 Flight Tracker above for more details.
Other flights departing from Washington IAD: F93731, MX650, MX369, UA3900
Other flights arriving at Denver DEN: UA5633, UA645, WN3327, UA630
All flights connecting Washington IAD to Denver DEN.