| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 20 | DEN | TUS | 11:52 | 12:29 |
Landed
|
Track > |
| May 19 | DEN | TUS | 11:39 | 12:21 |
Landed
|
Track > |
| May 18 | DEN | TUS | 11:38 | 12:37 |
En-Route
|
Track > |
| May 17 | DEN | TUS | 11:42 | 12:37 |
Unknown
|
Track > |
| May 16 | DEN | TUS | 12:01 | 12:56 |
Landed Late
|
Track > |
| May 15 | DEN | TUS | 11:46 | 12:19 |
Landed
|
Track > |
| May 14 | DEN | TUS | 11:59 | 12:34 |
Landed
|
Track > |
| May 13 | DEN | TUS | 12:00 | 12:31 |
Landed
|
Track > |
| May 12 | DEN | TUS | 11:50 | 12:24 |
Landed
|
Track > |
| May 11 | DEN | TUS | 11:52 | 12:24 |
Landed
|
Track > |
United Airlines Flight UA1251 connects Denver, United States to Tucson, United States, taking off from Denver International Airport DEN and landing at Tucson International Airport TUS.
How long is the UA1251 flight from Denver to Tucson?
The average flight time from Denver to Tucson is 1 hour and 37 minutes. The flight distance is 1029 km / 639 miles and the average flight speed is 607 km/h / 377 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1251 Denver to Tucson?
The Airportia On-Time Performance Rating for United Airlines Flight UA1251 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA1251 flight?
The latest flight took off on Wednesday, May 20th, 2026 with the flight status being Landed on 12:29.
How else can the flight UA1251 be referenced as?
This United Airlines flight can also be referenced as UAL1251, UA 1251, UAL 1251.
How often is flight UA1251 delayed?
On average, 10% of all UA1251 flights are delayed. The average delay is 19 minutes.
Can I get compensation for my delayed or cancelled UA1251 flight or baggage issues?
If your UA1251 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 UA1251 Flight Tracker above for more details.
Flight UA1251 is code-shared by 1 airline using the flight number AC4082
Other flights departing from Denver DEN: UA2357, UA4765, LF3331, UA1180
Other flights arriving at Tucson TUS: AA3066, WN2140, AA6412, WN3900
All flights connecting Denver DEN to Tucson TUS.