| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 25 | MIA | DEN | 18:46 | 21:39 |
Landed Late
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| Jun 23 | MIA | DEN | 18:24 | 20:37 |
Landed
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| Jun 22 | MIA | DEN | 19:05 | 20:31 |
Landed
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| Jun 20 | MIA | DEN | 18:33 | 20:12 |
Landed
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| Jun 19 | MIA | DEN | 18:52 | 20:38 |
Landed
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| Jun 18 | MIA | DEN | 18:35 | 20:33 |
Landed
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| Jun 16 | MIA | DEN | 18:41 | 20:39 |
Landed
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| Jun 15 | MIA | DEN | 18:38 | 20:27 |
Landed
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| Jun 13 | MIA | DEN | 18:36 | 21:07 |
Landed
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| Jun 12 | MIA | DEN | 18:44 | 20:35 |
Landed
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United Airlines Flight UA2121 connects Miami, United States to Denver, United States, taking off from Miami International Airport MIA and landing at Denver International Airport DEN.
How long is the UA2121 flight from Miami to Denver?
The average flight time from Miami to Denver is 4 hours. The flight distance is 2749 km / 1708 miles and the average flight speed is 693 km/h / 430 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA2121 Miami to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA2121 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA2121 flight?
The latest flight took off on Thursday, June 26th, 2025 with the flight status being Landed on 21:39.
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 22 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 Miami MIA: UA1857, AA9601, ET3577, XL413
Other flights arriving at Denver DEN: UA2234, UA2695, UA283, KG155
All flights connecting Miami MIA to Denver DEN.
