United Airlines UA4257 Flight Status

Current status of UA4257 is Arrived On time

UA4257 - UAL4257 United Airlines (UA)
IAD Dulles United States
Flight IAD to TYS
TYS Knoxville United States
Arrived On time
Departure Washington Dulles International Airport
IATA: IADICAO: KIAD
Scheduled 09:00 08 December 2025
Actual 08:50 08 December 2025
None A4E
Arrival McGhee Tyson Airport
IATA: TYSICAO: KTYS
Scheduled 10:48 08 December 2025
Actual 10:23 08 December 2025
None 7
UA4257 Detail
  • Type: Domestic Flight
  • Code Shares: AC 4741, AV 2346, CM 2237
  • Flight Duration: 1 hours 33 minutes
  • Flight Distance: 676 kms / 420 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: 1.5 tons
  • Passenger classes: Economy, Shuttle, Premium Economy
More Detail
  • Aircraft: Embraer EMB-145XR
  • Callsign: F-KLEX4
  • Departure Timezone: America/New_York
  • Arrival Timezone: America/New_York
  • Current Time in Dulles: Monday 2025-12-08 21:27 PM
  • Current Time in Knoxville: Monday 2025-12-08 21:27 PM

Domestic flight United Airlines UA4257 takes off from Dulles (IAD) United States to Knoxville (TYS) United States. It's operated by United Airlines. The plane leaves Washington Dulles International Airport at 09:00 08 December 2025 America/New_York. The flight is expected to land at McGhee Tyson Airport at 10:48 08 December 2025 America/New_York. The flight will last about 1 hours 33 minutes.

United Airlines UA4257 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA4257
AIRPLANE Embraer EMB-145XR
ON TIME 12
DELAYED 2
CANCELLED 0
ON TIME 27
DELAYED 3
CANCELLED 0
ON TIME 52
DELAYED 8
CANCELLED 0
ON TIME 74
DELAYED 10
CANCELLED 0
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA4257 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Sat 22 Nov
Arrived On time
Dulles (IAD) 2025-11-22T09:00
Knoxville (TYS) 2025-11-22T10:48
2025-11-22T08:54
2025-11-22T10:36
Thu 20 Nov
Arrived Delayed by 1h 51m
Dulles (IAD) 2025-11-20T09:00
Knoxville (TYS) 2025-11-20T10:48
2025-11-20T11:51
2025-11-20T12:39
Tue 18 Nov
Departed On time
Dulles (IAD) 2025-11-18T09:00
Knoxville (TYS) 2025-11-18T10:48
2025-11-18T08:50
Mon 17 Nov
Scheduled On time
Dulles (IAD) 2025-11-17T09:00
Knoxville (TYS) 2025-11-17T10:48
Sun 16 Nov
Arrived On time
Dulles (IAD) 2025-11-16T09:00
Knoxville (TYS) 2025-11-16T10:48
2025-11-16T08:50
2025-11-16T10:47
Fri 14 Nov
Arrived On time
Dulles (IAD) 2025-11-14T09:00
Knoxville (TYS) 2025-11-14T10:48
2025-11-14T08:49
2025-11-14T10:13
Wed 12 Nov
Arrived On time
Dulles (IAD) 2025-11-12T09:00
Knoxville (TYS) 2025-11-12T10:48
2025-11-12T08:50
2025-11-12T10:33
Sun 09 Nov
Arrived On time
Dulles (IAD) 2025-11-09T09:00
Knoxville (TYS) 2025-11-09T10:48
2025-11-09T08:51
2025-11-09T10:37
Sat 08 Nov
Scheduled On time
Dulles (IAD) 2025-11-08T09:00
Knoxville (TYS) 2025-11-08T10:48
Wed 22 Oct
Arrived On time
Dulles (IAD) 2025-10-22T08:45
Knoxville (TYS) 2025-10-22T10:29
2025-10-22T08:36
2025-10-22T10:14

Similar flight route from Dulles (IAD) to Knoxville (TYS)

Airline Flight no Departure Arrival
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14:43
Air Canada AC4257
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Air Canada AC4743
Air Canada 		08/12/2025
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20:20
United Airlines UA4304
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23:59
United Airlines UA4914
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18:36 		1 hours 44 minutes
20:20
Copa Airlines CM1306
Copa Airlines 		08/12/2025
18:36 		1 hours 44 minutes
20:20
Brussels Airlines SN8957
Brussels Airlines 		08/12/2025
18:36 		1 hours 44 minutes
20:20
United Airlines UA4308
United Airlines 		08/12/2025
12:55 		1 hours 48 minutes
14:43

Frequently asked questions, answered

What is the scheduled flight duration for United Airlines UA4257 flight?

On average, nonstop flight takes 1 hour(s) 33 minutes, with the flight distance of 676 km (420 miles).

What is the current status of United Airlines UA4257 flight?

The current status of flight United Airlines UA4257 is Arrived On time.

What type of aircraft is used for the United Airlines UA4257 flight?

All United Airlines UA4257 flights are operated using Embraer EMB-145XR aircraft.

How many United Airlines UA4257 flights are operated a week?

7 flights per week. The Flight United Airlines UA4257 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .