United Airlines UA6645 Flight Status
According to Trip.com real-time data, the UA6645 flight operated by United Airlines on Oct 16, 2026 is scheduled to fly from Montreal (YUL) to St. Louis (STL). The flight is expected to depart at 4:55 PM (local time in Montreal, UTC-4) and land at 6:16 PM (local time in St. Louis, UTC-5) .
Thu, Oct 15
Fri, Oct 16
Sat, Oct 17
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Delayed
Your flight is about 28m late
2h 46m
Check-in Counter
--
Boarding Gate
C76
Arrival Gate
A17
Baggage
5
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United Airlines From CAD 409
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Scheduled
Your flight will depart on time.
2h 46m
Check-in Counter
--
Boarding Gate
C86
Arrival Gate
A17
Baggage
--
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Need a flight from Montreal to St. Louis?
United Airlines From CAD 409
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Scheduled
Your flight will depart on time.
2h 46m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
A17
Baggage
--
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Need a flight from Montreal to St. Louis?
United Airlines From CAD 409
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UA6645 Aircraft Details
According to Trip.com real-time data, the UA6645 flight flying from Montreal to St. Louis on 10/16/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 20y, 10m. The aircraft is equipped with 76 seats.
Embraer 175
Punctuality (Departure)
57
%
Punctuality (Arrival)
97
%
Late on average
4 minutes
Age
20y, 10m
Seats
76
Flight Distance
--
Economy
Business
In-Flight Services
None
Inflight entertainment is available
Wi-Fi is available
Power outlet
Seat Information
79 cm
Legroom
46 cm
Seat width
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Meal included
Inflight entertainment is available
Wi-Fi is available
Power outlet
Seat Information
97 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
1-2
Seat layout example
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Flight History for UA6645
Check more records from Trip.com about UA6645 before and after today
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Oct 11 | Montreal (YUL) | St. Louis (STL) | E75S | 5:37 PM | 6:55 PM | Arrived |
| Mon, Oct 12 | Montreal (YUL) | St. Louis (STL) | E75S | 8:14 PM | 9:30 PM | Arrived |
| Tue, Oct 13 | Montreal (YUL) | St. Louis (STL) | E75S | 5:27 PM | 6:46 PM | Arrived |
| Wed, Oct 14 | Montreal (YUL) | St. Louis (STL) | E75S | 5:03 PM | 6:29 PM | Arrived |
| Thu, Oct 15 | Montreal (YUL) | St. Louis (STL) | E75S | 5:23 PM | 6:44 PM | Delayed |
| Fri, Oct 16 | Montreal (YUL) | St. Louis (STL) | E75S | 4:55 PM | 6:16 PM | Scheduled |
| Sat, Oct 17 | Montreal (YUL) | St. Louis (STL) | E75S | 4:55 PM | 6:41 PM | Scheduled |
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UA6645 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA6645 is 57% (Late on average 32 minutes), and the on-time arrival rate is 97% (Late on average 4 minutes).
On-Time Departures
Punctuality
57
%
Late on average
32 minutes
Early
0
%
On time
57
%
30 mins late
40
%
60 mins late
0
%
90 mins late
3
%
Canceled
0
%
On-Time Arrivals
Punctuality
97
%
Late on average
4 minutes
Early
53
%
On time
43
%
30 mins late
0
%
60 mins late
0
%
90 mins late
3
%
Canceled
0
%
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Frequently Asked Questions
What is the current status of flight ua6645?
Flight ua6645 has not departed yet and is currently on schedule. Scheduled departure 4:55 PM, arrival 6:41 PM (updated Oct 16, 2026).Is flight ua6645 on time today?
Flight ua6645 has not departed yet and is currently on schedule. Scheduled departure is 4:55 PM, with arrival at 6:41 PM. Recheck gate and timing before you head to the airport.Has flight ua6645 departed yet? What is the departure time?
Flight ua6645 is scheduled to depart at 4:55 PM. The latest actual or estimated departure time is 4:55 PM, and the current status is Scheduled (updated Oct 16, 2026).When is flight ua6645 scheduled to arrive?
Flight ua6645 is scheduled to arrive at 6:41 PM. The latest estimated or actual arrival time is 6:16 PM. Status is Scheduled as of Oct 16, 2026.What route does flight ua6645 fly?
Flight ua6645 is operated by United Airlines from Montreal (YUL) to St. Louis (STL). Typical flight time is about 2 hours46 minutes; operating days may include Friday.How can I check real-time status for flight ua6645?
Track flight ua6645 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 ua6645 is delayed or canceled, what should I do?
If ua6645 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 16, 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 ua6645 departed from Montreal?
Flight ua6645 has not departed from Montreal (YUL) yet and is currently on schedule for 4:55 PM.What is the seat configuration for flight ua6645?
Flight ua6645 usually flies a Embraer 175 with seat layout 2-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Time on arrival: Montreal 19:41
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