United Airlines UA646 Flight Status
According to Trip.com real-time data, the UA646 flight operated by United Airlines on Sep 23, 2026 is scheduled to fly from Chicago (ORD) to Montreal (YUL). The flight is expected to depart at 2:01 PM (local time in Chicago, UTC-5) and land at 4:38 PM (local time in Montreal, UTC-4) .
Tue, Sep 22
Wed, Sep 23
Thu, Sep 24
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Arrived
The flight has arrived 31m early
2h 29m
Check-in Counter
--
Boarding Gate
G4
Arrival Gate
80
Baggage
1
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Scheduled
Your flight will depart on time.
2h 29m
Check-in Counter
--
Boarding Gate
E10
Arrival Gate
80
Baggage
1
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Scheduled
Your flight will depart on time.
5h 1m
Check-in Counter
--
Boarding Gate
C96
Arrival Gate
--
Baggage
4
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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Chicago to Montreal or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA2315
|
Philadelphia (PHL) 
Chicago (CHI)
Chicago (CHI)Scheduled: 12:29 PM
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UA646 Aircraft Details
According to Trip.com real-time data, the UA646 flight flying from Chicago to Montreal on 9/23/2026 is operated by the aircraft model Boeing 737 MAX 8. This aircraft has been in service for 3y, 2m. The aircraft is equipped with 166 seats.
Boeing 737 MAX 8
Punctuality (Departure)
33%
Punctuality (Arrival)
73%
Late on average
15 minutes
Age
3y, 2m
Seats
166
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
76 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
Snacks
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
94 cm
Legroom
53 cm
Seat width better than on 86% of flights
120°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
86 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for UA646
Trip.com historical records show that the last UA646 flight departed on Tue, Sep 22 from ORD at approximately 2:22 PM. This flight is expected to arrrive in YUL at 4:59 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Sep 18 | Chicago (ORD) | Montreal (YUL) | B38M | 2:23 PM | 5:00 PM | Arrived |
| Sat, Sep 19 | Chicago (ORD) | Montreal (YUL) | B38M | 3:59 PM | 6:33 PM | Arrived |
| Sun, Sep 20 | Chicago (ORD) | Montreal (YUL) | B38M | 2:19 PM | 4:56 PM | Arrived |
| Mon, Sep 21 | Chicago (ORD) | Montreal (YUL) | B38M | 2:37 PM | 5:09 PM | Arrived |
| Tue, Sep 22 | Chicago (ORD) | Montreal (YUL) | B38M | 2:22 PM | 4:59 PM | Arrived |
| Wed, Sep 23 | Chicago (ORD) | Montreal (YUL) | B38M | 2:01 PM | 4:38 PM | Scheduled |
| Thu, Sep 24 | New York (EWR) | Salt Lake City (SLC) | B38M | 7:35 AM | 10:36 AM | Scheduled |
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UA646 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA646 is 33% (Late on average 1 hour5 minutes), and the on-time arrival rate is 73% (Late on average 15 minutes).
On-Time Departures
Punctuality
33%
Late on average 1 hour5 minutes
Early
0%
On time
33%
30 mins late
27%
60 mins late
17%
90 mins late
23%
Canceled
0%
On-Time Arrivals
Punctuality
73%
Late on average 15 minutes
Early
57%
On time
17%
30 mins late
10%
60 mins late
7%
90 mins late
10%
Canceled
0%
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Frequently Asked Questions
What is the current status of flight ua646?
Flight ua646 has not departed yet and is currently on schedule. Scheduled departure 2:01 PM, arrival 5:30 PM (updated Sep 23, 2026).Is flight ua646 on time today?
Flight ua646 has not departed yet and is currently on schedule. Scheduled departure is 2:01 PM, with arrival at 5:30 PM. Recheck gate and timing before you head to the airport.Has flight ua646 departed yet? What is the departure time?
Flight ua646 is scheduled to depart at 2:01 PM. The latest actual or estimated departure time is 2:01 PM, and the current status is Scheduled (updated Sep 23, 2026).When is flight ua646 scheduled to arrive?
Flight ua646 is scheduled to arrive at 5:30 PM. The latest estimated or actual arrival time is 4:38 PM. Status is Scheduled as of Sep 23, 2026.What is the gate information for flight ua646?
For flight ua646, the departure terminal is T1 and the boarding gate is E10. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight ua646 fly?
Flight ua646 is operated by United Airlines from Chicago (ORD) to Montreal (YUL). Typical flight time is about 2 hours29 minutes; operating days may include Wednesday.How can I check real-time status for flight ua646?
Track flight ua646 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 ua646 is delayed or canceled, what should I do?
If ua646 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 23, 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 ua646 departed from Chicago?
Flight ua646 has not departed from Chicago (ORD) yet and is currently on schedule for 2:01 PM.What is the seat configuration for flight ua646?
Flight ua646 usually flies a Boeing 737 MAX 8 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Montreal Weather & Current Time
Clear
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7°C - 16°C
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1 hour time difference
Time on arrival: Chicago 15:38| Montreal 16:38
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