United Airlines UA4257 Flight Status Today

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 06:30 03 May 2026 America/New_York. The flight is expected to land at McGhee Tyson Airport at 08:39 03 May 2026 America/New_York. The flight will last about 2 hours 9 minutes.

Current status of UA4257 is Scheduled On time Estimated Depart in 0 minutes

UA4257 - UAL4257 United Airlines (UA)
IAD Dulles United States
Flight IAD to TYS
TYS Knoxville United States
Scheduled On time Estimated Depart in 0 minutes
Departure Washington Dulles International Airport
IATA: IADICAO: KIAD
Scheduled 06:30 03 May 2026
Estimated 06:30 03 May 2026
None 1
Arrival McGhee Tyson Airport
IATA: TYSICAO: KTYS
Scheduled 08:39 03 May 2026
Estimated 08:39 03 May 2026
B 24
UA4257 Detail
  • Type: Domestic Flight
  • Flight Duration: 2 hours 9 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: Sunday 2026-05-03 07:21 AM
  • Current Time in Knoxville: Sunday 2026-05-03 07:21 AM

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
Thu 23 Apr
Arrived On time
Dulles (IAD) 2026-04-23T09:00
Knoxville (TYS) 2026-04-23T10:50
2026-04-23T08:50
2026-04-23T10:13
Sun 19 Apr
Arrived On time
Dulles (IAD) 2026-04-19T09:00
Knoxville (TYS) 2026-04-19T10:50
2026-04-19T08:56
2026-04-19T10:48
Sat 18 Apr
Scheduled On time
Dulles (IAD) 2026-04-18T09:00
Knoxville (TYS) 2026-04-18T10:50
Tue 14 Apr
Arrived On time
Dulles (IAD) 2026-04-14T09:00
Knoxville (TYS) 2026-04-14T10:50
2026-04-14T08:50
2026-04-14T10:27
Mon 13 Apr
Scheduled On time
Dulles (IAD) 2026-04-13T09:00
Knoxville (TYS) 2026-04-13T10:50
Sat 11 Apr
Scheduled On time
Dulles (IAD) 2026-04-11T09:00
Knoxville (TYS) 2026-04-11T10:50
Thu 02 Apr
Scheduled Delayed by 3h 6m
Dulles (IAD) 2026-04-02T09:00
Knoxville (TYS) 2026-04-02T10:50
Mon 23 Mar
Arrived On time
Dulles (IAD) 2026-03-23T09:00
Knoxville (TYS) 2026-03-23T10:49
2026-03-23T08:49
2026-03-23T10:25
Sun 08 Mar
Departed On time
Dulles (IAD) 2026-03-08T09:00
Knoxville (TYS) 2026-03-08T10:49
2026-03-08T08:55
Tue 03 Mar
Scheduled On time
Dulles (IAD) 2026-03-03T09:00
Knoxville (TYS) 2026-03-03T10:49

Flight routes similar to United Airlines UA4257

Airline Flight no Departure Arrival
United Airlines UA4914
United Airlines 		03/05/2026
18:20 		1 hours 52 minutes
20:12
Ethiopian Airlines ET1378
Ethiopian Airlines 		03/05/2026
12:45 		1 hours 49 minutes
14:34
Brussels Airlines SN8957
Brussels Airlines 		03/05/2026
18:20 		1 hours 52 minutes
20:12
United Airlines UA6180
United Airlines 		03/05/2026
09:00 		1 hours 35 minutes
10:49
Air Canada AC4741
Air Canada 		03/05/2026
09:00 		1 hours 35 minutes
10:49
Air Canada AC4743
Air Canada 		03/05/2026
18:20 		1 hours 52 minutes
20:12
Air Canada AC4257
Air Canada 		03/05/2026
12:45 		1 hours 49 minutes
14:34
Avianca AV2348
Avianca 		03/05/2026
18:20 		1 hours 52 minutes
20:12

United Airlines Flight UA4257 FAQs

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

On average, nonstop flight takes 2 hour(s) 9 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 Scheduled 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.

When does the flight United Airlines UA4257 arrive?

Flight United Airlines UA4257 arrives at 08:39.

Which terminal the flight United Airlines UA4257 is arriving at?

Flight United Airlines UA4257 arrives in McGhee Tyson Airport at Terminal B.

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 .