United Airlines UA4643 Flight Status
Based on Trip.com’s real-time data, the UA4643 flight operated by United Airlines on Sep 20, 2026 is scheduled to fly from Billings (BIL) to Denver (DEN). The flight is expected to depart at 17:57 and land at 19:12 .
Sat, Sep 19
Sun, Sep 20
Mon, Sep 21
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Arrived
The flight has arrived 38m late
1h 53m
Check-in Counter
--
Boarding Gate
B3
Arrival Gate
B64
Baggage
15
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Scheduled
Your flight will depart on time.
1h 56m
Check-in Counter
--
Boarding Gate
B3
Arrival Gate
B69
Baggage
17
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Scheduled
Your flight will depart on time.
1h 56m
Check-in Counter
--
Boarding Gate
A1
Arrival Gate
--
Baggage
--
Information provided by VariFlight For the latest updates, please refer to airport announcements or consult your airline. You can also explore more flights from Billings to Denver or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA5787
|
Fresno (FAT) 
Billings (BIL)
Billings (BIL)Scheduled: 17:16
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UA4643 Aircraft Details
According to Trip.com real-time data, the UA4643 flight flying from Billings to Denver on 9/20/2026 is operated by the aircraft model Embraer 170. This aircraft has been in service for 22y, 4m. The aircraft is equipped with 70 seats.
Embraer 170
Punctuality (Departure)
63%
Punctuality (Arrival)
73%
Late on average
13 minutes
Age
22y, 4m
Seats
70
Distance
--
Economy
First
Premium Economy
Onboard Amenities
Snacks
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seating Plan
79 cm
More legroom than on 43% of flights
46 cm
Seat width better than on 79% of flights
100°
Reclining Angle
2-2
Seat layout example
Onboard Amenities
Snacks
Inflight entertainment is available
Unknown
USB port and power outlet
Seating Plan
94 cm
Legroom
61 cm
Seat width better than on 75% of flights
135°
Reclining Angle
1-2
Seat layout example
Onboard Amenities
None
In-flight entertainment is unavailable
Wi-Fi is available
No power outlets are available
Seating Plan
86 cm
Legroom
46 cm
Seat width better than on 77% of flights
105°
Reclining Angle
--
Seat layout example
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Flight History for UA4643
Trip.com historical records show that the last UA4643 flight departed on Sat, Sep 19 from BIL at approximately 18:09. This flight is expected to arrrive in DEN at 20:28.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 15 | Billings (BIL) | Denver (DEN) | E75L | 18:12 | 19:24 | Arrived |
| Wed, Sep 16 | Billings (BIL) | Denver (DEN) | E170 | 18:44 | 19:55 | Arrived |
| Thu, Sep 17 | Billings (BIL) | Denver (DEN) | E170 | 18:12 | 19:39 | Arrived |
| Fri, Sep 18 | Billings (BIL) | Denver (DEN) | E170 | 19:13 | 20:40 | Arrived |
| Sat, Sep 19 | Billings (BIL) | Denver (DEN) | CRJ7 | 18:09 | 20:28 | Arrived |
| Sun, Sep 20 | Billings (BIL) | Denver (DEN) | E170 | 17:57 | 19:12 | Scheduled |
| Mon, Sep 21 | Billings (BIL) | Denver (DEN) | E170 | 17:57 | 19:53 | Scheduled |
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UA4643 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4643 is 63% (Late on average 52 minutes), and the on-time arrival rate is 73% (Late on average 13 minutes).
On-Time Departures
Punctuality
63%
Late on average 52 minutes
Early
0%
On time
63%
30 mins late
10%
60 mins late
13%
90 mins late
13%
Cancelled
0%
On-Time Arrivals
Punctuality
73%
Late on average 13 minutes
Early
63%
On time
10%
30 mins late
13%
60 mins late
3%
90 mins late
10%
Cancelled
0%
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Frequently Asked Questions
What is the current status of flight ua4643?
Flight ua4643 has not departed yet and is currently on schedule. Scheduled departure 17:57, arrival 19:53 (updated Sep 20, 2026).Is flight ua4643 on time today?
Flight ua4643 has not departed yet and is currently on schedule. Scheduled departure is 17:57, with arrival at 19:53. Recheck gate and timing before you head to the airport.Has flight ua4643 departed yet? What is the departure time?
Flight ua4643 is scheduled to depart at 17:57. The latest actual or estimated departure time is 17:57, and the current status is Scheduled (updated Sep 20, 2026).When is flight ua4643 scheduled to arrive?
Flight ua4643 is scheduled to arrive at 19:53. The latest estimated or actual arrival time is 19:12. Status is Scheduled as of Sep 20, 2026.What route does flight ua4643 fly?
Flight ua4643 is operated by United Airlines from Billings (BIL) to Denver (DEN). Typical flight time is about 1 hour56 minutes; operating days may include Sunday.How can I check real-time status for flight ua4643?
Track flight ua4643 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 ua4643 is delayed or canceled, what should I do?
If ua4643 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 20, 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 ua4643 departed from Billings?
Flight ua4643 has not departed from Billings (BIL) yet and is currently on schedule for 17:57.What is the seat configuration for flight ua4643?
Flight ua4643 usually flies a Embraer 170 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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Destination Info: Denver Weather & Time
Cloudy
|
12°C - 27°C
Expected weather conditions upon arrival
0 hour time difference
Time on arrival: Billings 19:12| Denver 19:12
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