United Airlines UA4637 flight status now

Current status of UA4637 is Scheduled On time Estimated Depart in 3 hours, 27 minutes

UA4637 - UAL4637 United Airlines (UA)
DEN Denver United States
Flight DEN to TUS
TUS Tucson United States
Scheduled On time Estimated Depart in 3 hours, 27 minutes
Departure Denver International Airport
IATA: DENICAO: KDEN
Scheduled 07:45 18 November 2025
Estimated 07:45 18 November 2025
None B66
Arrival Tucson International Airport
IATA: TUSICAO: KTUS
Scheduled 09:59 18 November 2025
Estimated 09:59 18 November 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: Embraer 175
  • Callsign: F-KICT2
  • Departure Timezone: America/Denver
  • Arrival Timezone: America/Phoenix
  • Current Time in Denver: Tuesday 2025-11-18 04:18 AM
  • Current Time in Tucson: Tuesday 2025-11-18 04:18 AM

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 18 November 2025 America/Denver. The flight is expected to land at Tucson International Airport at 09:59 18 November 2025 America/Phoenix. The flight will last about 2 hours 14 minutes.

United Airlines UA4637 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA4637
AIRPLANE Embraer 175
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
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
Mon 20 Oct
Scheduled On time
Denver (DEN) 2025-10-20T17:39
Tucson (TUS) 2025-10-20T19:40
Fri 10 Oct
Scheduled On time
Denver (DEN) 2025-10-10T17:39
Tucson (TUS) 2025-10-10T19:40
Thu 09 Oct
Arrived On time
Denver (DEN) 2025-10-09T17:39
Tucson (TUS) 2025-10-09T19:40
2025-10-09T17:29
2025-10-09T19:26
Wed 08 Oct
Scheduled On time
Denver (DEN) 2025-10-08T17:39
Tucson (TUS) 2025-10-08T19:40
Tue 30 Sep
Scheduled On time
Denver (DEN) 2025-09-30T17:39
Tucson (TUS) 2025-09-30T19:40
Mon 29 Sep
Departed On time
Denver (DEN) 2025-09-29T17:39
Tucson (TUS) 2025-09-29T19:40
2025-09-29T17:39
Sun 28 Sep
Scheduled Delayed by 2h 41m
Denver (DEN) 2025-09-28T17:39
Tucson (TUS) 2025-09-28T19:40

Similar flight route from Denver (DEN) to Tucson (TUS)

Airline Flight no Departure Arrival
Air Canada AC4082
Air Canada 		18/11/2025
11:31 		2 hours 6 minutes
13:37
United Airlines UA1762
United Airlines 		18/11/2025
19:38 		2 hours 6 minutes
21:44
Air Canada AC4092
Air Canada 		18/11/2025
19:38 		2 hours 6 minutes
21:44
Air Canada AC4130
Air Canada 		18/11/2025
13:55 		2 hours 7 minutes
16:02
United Airlines UA5651
United Airlines 		18/11/2025
15:55 		2 hours 15 minutes
18:10
Southwest Airlines WN1787
Southwest Airlines 		18/11/2025
13:25 		0 minutes
15:25
Lufthansa LH7612
Lufthansa 		18/11/2025
15:55 		2 hours 9 minutes
18:10
United Airlines UA1476
United Airlines 		18/11/2025
13:55 		2 hours 5 minutes
16:02

Frequently asked questions, answered

How long is the flight from Denver to Tucson?

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

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

All United Airlines UA4637 flights are operated using Embraer 175 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 .