| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 10 | YUL | DEN | 08:36 | 10:29 |
Landed
|
Track > |
| Sep 09 | YUL | DEN | 08:59 | 10:56 |
Landed Late
|
Track > |
| Sep 08 | YUL | DEN | 08:34 | 10:17 |
Landed
|
Track > |
| Sep 07 | YUL | DEN | 08:29 | 10:33 |
En-Route
|
Track > |
| Sep 06 | YUL | DEN | 08:12 | 10:28 |
Landed
|
Track > |
| Sep 05 | YUL | DEN | 08:27 | 10:12 |
Landed
|
Track > |
| Sep 03 | YUL | DEN | 08:41 | 10:34 |
Landed
|
Track > |
| Sep 02 | YUL | DEN | 08:52 | 10:44 |
Landed
|
Track > |
| Sep 01 | YUL | DEN | 08:40 | 10:32 |
Landed
|
Track > |
| Aug 31 | YUL | DEN | 08:24 | 10:12 |
Landed
|
Track > |
United Airlines Flight UA8523 connects Montreal, Canada to Denver, United States, taking off from Montreal Pierre Elliott Trudeau Airport YUL and landing at Denver International Airport DEN.
How long is the UA8523 flight from Montreal to Denver?
The average flight time from Montreal to Denver is 3 hours and 53 minutes. The flight distance is 2587 km / 1608 miles and the average flight speed is 660 km/h / 410 mph.
How many UA8523 flights are operated per week?
6 flights per week. The flight UA8523 is operated on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA8523 Montreal to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA8523 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA8523 flight?
The latest flight took off on Thursday, September 10th, 2026 with the flight status being Landed on 10:29.
How else can the flight UA8523 be referenced as?
This United Airlines flight can also be referenced as UAL8523, UA 8523, UAL 8523.
How often is flight UA8523 delayed?
On average, 30% of all UA8523 flights are delayed. The average delay is 12 minutes.
Can I get compensation for my delayed or cancelled UA8523 flight or baggage issues?
If your UA8523 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 UA8523 Flight Tracker above for more details.
Other flights departing from Montreal YUL: 9M301, AC317, YN921, YN943
Other flights arriving at Denver DEN: UA1727, AC1073, UA598, UA2459
All flights connecting Montreal YUL to Denver DEN.
