United Airlines
UA8523 Flight Status
According to Trip.com latest record on status for United Airlines flight UA8523 from Montreal to Denver (YUL-DEN): Flight UA8523 has taken off from Montréal-Pierre Elliott Trudeau International Airport at 08:27, and is currently en-route to Denver International Airport. Estimated time of arrival is 10:17.
Thu, Aug 27
Sat, Aug 29
Sun, Aug 30
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Arrived
The flight arrived 28m late.
4h 18m
Check-in Counter
--
Boarding Gate
C76
Arrival Gate
A43
Baggage
11
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In Flight
Your flight has departed Montreal and is expected to arrive in Denver at 10:17.
4h 18m
Check-in Counter
--
Boarding Gate
C77
Arrival Gate
A43
Baggage
11
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Scheduled
Your flight will depart on time.
4h 18m
Check-in Counter
--
Boarding Gate
C76
Arrival Gate
A43
Baggage
--
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UA8523
UA8523 Aircraft Specifications
According to Trip.com real-time data, the UA8523 flight from Montreal to Denver on 8/29/2026 is operated using the aircraft model Airbus A220-300. This aircraft has been in service for 4m. The aircraft has 137 seats.
Airbus A220-300
On-Time Departure
67
%
On-Time Arrival
93
%
Avg. Early
3 minutes
Aircraft Age
4m
Total Seats
137
Flight Distance
--
Economy
Business
Cabin Amenities
None
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seat Information
76 cm
Legroom
48 cm
Seat width
100°
Reclining Angle
2-3
Seat layout example
Cabin Amenities
Meal included
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seat Information
94 cm
Legroom
53 cm
Seat width
120°
Reclining Angle
2-2
Seat layout example
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UA8523 Flight History
Trip.com historical records show that the last UA8523 flight departed on Thu, Aug 27 from YUL at approximately 09:31. This flight is expected to arrrive in DEN at 11:01.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Aug 24 | Montreal (YUL) | Denver (DEN) | BCS3 | 08:36 | 10:19 | Arrived |
| Tue, Aug 25 | Montreal (YUL) | Denver (DEN) | BCS3 | 08:53 | 10:33 | Arrived |
| Wed, Aug 26 | Montreal (YUL) | Denver (DEN) | BCS3 | 08:26 | 10:20 | Arrived |
| Thu, Aug 27 | Montreal (YUL) | Denver (DEN) | BCS3 | 09:31 | 11:01 | Arrived |
| Sat, Aug 29 | Montreal (YUL) | Denver (DEN) | BCS3 | 08:27 | 10:17 | In Flight |
| Sun, Aug 30 | Montreal (YUL) | Denver (DEN) | BCS3 | 08:15 | 10:33 | Scheduled |
| Mon, Aug 31 | Montreal (YUL) | Denver (DEN) | BCS3 | 08:15 | 10:33 | Scheduled |
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UA8523 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA8523 is 67% (Late on average 29 minutes), and the on-time arrival rate is 93% (Early on average 3 minutes).
On-Time Departures
Punctuality
67
%
Late on average
29 minutes
Early
0
%
On time
67
%
30 mins late
20
%
60 mins late
13
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
93
%
Early on average
3 minutes
Early
67
%
On time
27
%
30 mins late
7
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
-
What is the current status of flight ua8523?
Flight ua8523 has departed (status: In Flight). Departure 08:27, estimated arrival 10:17 (updated Aug 29, 2026). -
Is flight ua8523 on time today?
Flight ua8523 has already departed (status: In Flight). It took off at 08:27 and is estimated to arrive at 10:17. -
Has flight ua8523 departed yet? What is the departure time?
Flight ua8523 is scheduled to depart at 08:15. The latest actual or estimated departure time is 08:27, and the current status is In Flight (updated Aug 29, 2026). -
When is flight ua8523 scheduled to arrive?
Flight ua8523 is scheduled to arrive at 10:33. The latest estimated or actual arrival time is 10:17. Status is In Flight as of Aug 29, 2026. -
What route does flight ua8523 fly?
Flight ua8523 is operated by United Airlines from Montreal (YUL) to Denver (DEN). Typical flight time is about 4 hours 18 minutes; operating days may include Saturday. -
How can I check real-time status for flight ua8523?
Track flight ua8523 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications. -
If flight ua8523 is delayed or canceled, what should I do?
If ua8523 is delayed or canceled, first confirm the latest status here (In Flight, updated Aug 29, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight ua8523 departed from Montreal?
Flight ua8523 has departed from Montreal (YUL) at 08:27 (status: In Flight). -
What is the seat configuration for flight ua8523?
Flight ua8523 usually flies a Airbus A220-300 with seat layout 2-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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-2 hour time difference
Time on arrival: Montreal 12:17
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