| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 29 | STL | DEN | 18:12 | 19:31 |
Landed
|
Track > |
| Apr 28 | STL | DEN | 16:42 | 17:53 |
Landed
|
Track > |
| Apr 26 | STL | DEN | 18:35 | 19:40 |
Landed
|
Track > |
| Apr 24 | STL | DEN | 18:07 | 19:01 |
Landed
|
Track > |
| Apr 23 | STL | DEN | 18:57 | 20:02 |
Landed Late
|
Track > |
| Apr 22 | STL | DEN | 18:17 | 19:14 |
Landed
|
Track > |
| Apr 21 | STL | DEN | 16:45 | 17:34 |
Landed
|
Track > |
| Apr 19 | STL | DEN | 18:23 | 19:20 |
Landed
|
Track > |
| Apr 17 | STL | DEN | 20:22 | 21:26 |
Delayed
|
Track > |
| Apr 16 | STL | DEN | 18:17 | 19:08 |
Landed
|
Track > |
United Airlines Flight UA1236 connects St. Louis, United States to Denver, United States, taking off from St. Louis Lambert International Airport STL and landing at Denver International Airport DEN.
How long is the UA1236 flight from St. Louis to Denver?
The average flight time from St. Louis to Denver is 2 hours and 1 minute. The flight distance is 1235 km / 768 miles and the average flight speed is 615 km/h / 382 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1236 St. Louis to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA1236 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA1236 flight?
The latest flight took off on Thursday, April 30th, 2026 with the flight status being Landed on 19:31.
How else can the flight UA1236 be referenced as?
This United Airlines flight can also be referenced as UAL1236, UA 1236, UAL 1236.
How often is flight UA1236 delayed?
On average, 30% of all UA1236 flights are delayed. The average delay is 43 minutes.
Can I get compensation for my delayed or cancelled UA1236 flight or baggage issues?
If your UA1236 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 UA1236 Flight Tracker above for more details.
Flight UA1236 is code-shared by 1 airline using the flight number AC4897
Other flights departing from St. Louis STL: DL1603, DL2821, UA4616, DL1492
Other flights arriving at Denver DEN: UA5804, UA2494, OO6073, UA6073
All flights connecting St. Louis STL to Denver DEN.