United Airlines UA4637 Flight Status Today

Domestic flight United Airlines UA4637 takes off from Denver (DEN) United States to Tucson (TUS) United States. It's operated by United Airlines. The plane leaves Denver International Airport at 07:45 29 December 2025 America/Denver. The flight is expected to land at Tucson International Airport at 09:59 29 December 2025 America/Phoenix. The flight will last about 2 hours 14 minutes.

Current status of UA4637 is Scheduled On time Estimated Depart in 7 hours, 29 minutes

UA4637 - UAL4637 United Airlines (UA)
DEN Denver United States
Flight DEN to TUS
TUS Tucson United States
Scheduled On time Estimated Depart in 7 hours, 29 minutes
Departure Denver International Airport
IATA: DENICAO: KDEN
Scheduled 07:45 29 December 2025
Estimated 07:45 29 December 2025
None B50
Arrival Tucson International Airport
IATA: TUSICAO: KTUS
Scheduled 09:59 29 December 2025
Estimated 09:59 29 December 2025
None A8
UA4637 Detail
  • Type: Domestic Flight
  • Code Shares: AC 3974
  • Flight Duration: 2 hours 14 minutes
  • Flight Distance: 1026 kms / 638 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 50
  • Freight capacity: 1 tons
  • Passenger classes: Economy, Shuttle, Premium Economy
More Detail
  • Aircraft: Canadair (Bombardier) Regional Jet 700 and Challenger 870
  • Callsign: F-KICT2
  • Departure Timezone: America/Denver
  • Arrival Timezone: America/Phoenix
  • Current Time in Denver: Monday 2025-12-29 00:16 AM
  • Current Time in Tucson: Monday 2025-12-29 00:16 AM

United Airlines UA4637 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA4637
AIRPLANE Canadair (Bombardier) Regional Jet 700 and Challenger 870
ON TIME 12
DELAYED 2
CANCELLED 0
ON TIME 28
DELAYED 2
CANCELLED 0
ON TIME 43
DELAYED 16
CANCELLED 1
ON TIME 64
DELAYED 19
CANCELLED 1
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA4637 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Sun 28 Dec
Departed Delayed by 1h 2m
Denver (DEN) 2025-12-28T07:45
Tucson (TUS) 2025-12-28T09:59
2025-12-28T08:05
Sat 27 Dec
Arrived Delayed by 35m
Denver (DEN) 2025-12-27T07:45
Tucson (TUS) 2025-12-27T09:59
2025-12-27T07:41
2025-12-27T10:34
Thu 25 Dec
Scheduled On time
Denver (DEN) 2025-12-25T07:45
Tucson (TUS) 2025-12-25T09:59
Wed 24 Dec
Arrived On time
Denver (DEN) 2025-12-24T07:45
Tucson (TUS) 2025-12-24T09:59
2025-12-24T07:38
2025-12-24T09:38
Sun 23 Nov
Arrived On time
Denver (DEN) 2025-11-23T07:45
Tucson (TUS) 2025-11-23T09:59
2025-11-23T07:41
2025-11-23T09:49
Wed 19 Nov
Arrived On time
Denver (DEN) 2025-11-19T07:45
Tucson (TUS) 2025-11-19T09:59
2025-11-19T07:45
2025-11-19T10:02
Tue 18 Nov
Scheduled On time
Denver (DEN) 2025-11-18T07:45
Tucson (TUS) 2025-11-18T09:59
Mon 17 Nov
Arrived On time
Denver (DEN) 2025-11-17T07:45
Tucson (TUS) 2025-11-17T09:59
2025-11-17T07:38
2025-11-17T09:44
Sat 15 Nov
Cancelled
Denver (DEN) 2025-11-15T07:45
Tucson (TUS) 2025-11-15T09:59
Tue 21 Oct
Departed On time
Denver (DEN) 2025-10-21T17:39
Tucson (TUS) 2025-10-21T19:40
2025-10-21T17:32

Flight routes similar to United Airlines UA4637

Airline Flight no Departure Arrival
United Airlines UA525
United Airlines 		29/12/2025
14:30 		2 hours 5 minutes
16:35
Air Canada AC4252
Air Canada 		29/12/2025
15:36 		2 hours 18 minutes
17:53
Air Canada AC4130
Air Canada 		29/12/2025
14:30 		1 hours 58 minutes
16:35
Air Canada AC3974
Air Canada 		29/12/2025
07:45 		3 hours 13 minutes
09:59
Southwest Airlines WN2699
Southwest Airlines 		29/12/2025
22:35 		0 minutes
00:35
Copa Airlines CM1152
Copa Airlines 		29/12/2025
19:50 		2 hours 8 minutes
21:58
Lufthansa LH8768
Lufthansa 		29/12/2025
19:50 		2 hours 8 minutes
21:58
Air Canada AC4092
Air Canada 		29/12/2025
19:50 		2 hours 8 minutes
21:58

United Airlines Flight UA4637 FAQs

What is the scheduled flight duration for United Airlines UA4637 flight?

On average, nonstop flight takes 2 hour(s) 14 minutes, with the flight distance of 1026 km (638 miles).

What is the current status of United Airlines UA4637 flight?

The current status of flight United Airlines UA4637 is Scheduled On time.

What type of aircraft is used for the United Airlines UA4637 flight?

All United Airlines UA4637 flights are operated using Canadair (Bombardier) Regional Jet 700 and Challenger 870 aircraft.

How many United Airlines UA4637 flights are operated a week?

7 flights per week. The Flight United Airlines UA4637 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .