| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 31 | DEN | SAT | 10:10 | 12:46 |
En-Route
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| Oct 30 | DEN | SAT | 09:51 | 12:39 |
Landed
|
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| Oct 29 | DEN | SAT | 09:44 | 12:32 |
Landed
|
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| Oct 28 | DEN | SAT | 09:41 | 12:30 |
Landed
|
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| Oct 27 | DEN | SAT | 09:55 | 12:37 |
Landed
|
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| Oct 26 | DEN | SAT | 09:45 | 12:45 |
Landed
|
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| Oct 25 | DEN | SAT | 09:49 | 12:48 |
Landed
|
Track > |
United Airlines Flight UA1521 connects Denver, United States to San Antonio, United States, taking off from Denver International Airport DEN and landing at San Antonio International Airport SAT.
How long is the UA1521 flight from Denver to San Antonio?
The average flight time from Denver to San Antonio is 1 hour and 51 minutes. The flight distance is 1280 km / 795 miles and the average flight speed is 679 km/h / 422 mph.
How many UA1521 flights are operated per week?
7 flights per week. The flight UA1521 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA1521 Denver to San Antonio?
The Airportia On-Time Performance Rating for United Airlines Flight UA1521 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1521 arriving at?
Flight UA1521 arrives at San Antonio International Airport (SAT) Terminal B.
When was the latest UA1521 flight?
The latest flight took off on Saturday, October 31st, 2026 with the flight status being En-Route on 12:46.
How else can the flight UA1521 be referenced as?
This United Airlines flight can also be referenced as UAL1521, UA 1521, UAL 1521.
How often is flight UA1521 delayed?
On average, 14% of all UA1521 flights are delayed. The average delay is 2 minutes.
Can I get compensation for my delayed or cancelled UA1521 flight or baggage issues?
If your UA1521 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 UA1521 Flight Tracker above for more details.
Flight UA1521 is code-shared by 1 airline using the flight number AC4764
Other flights departing from Denver DEN: UA236, UA355, OO5369, UA5743
Other flights arriving at San Antonio SAT: DL1408, WN2862, AA1916, WN2006
All flights connecting Denver DEN to San Antonio SAT.