Popular Airports
Popular Airlines
More about flight.info

United Airlines

UAL4257 / UA4257

ICAO: UAL4257 IATA: UA4257

Flight schedule

Select flight date
Departure
Arrive
Aircraft
Effective
Avalibility
United Airlines
UAL4257
Duration
1h 42m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 37m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 36m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
AC 4741 /AV 2346 /CM 2237
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
United Airlines
UAL4257
Duration
1h 30m
Distance
421 mi, 677 km
Coreshare
Same day flight
Yes
Terminal
Meals
No meal service
Seats
50
Economy
50
According to schedule
Live tracker
Svg Vector Icons : http://www.onlinewebfonts.com/icon
IAD
Dulles, US
left TERMINAL N/A
Dulles - IAD
TUESDAY 02-JUN-2026
09:00 GMT-0400
TYS
Knoxville, US
arrives TERMINAL N/A
Knoxville - TYS
TUESDAY 02-JUN-2026
10:42 GMT-0400
Ad

General route info

Frequency:

Daily

Sun Mon Tue Wed Thu Fri Sat

Direct distance

420 miles, 675 km

Actual distance

421 miles, 677 km

0.24%
Flight time

1h 42m

Flights / Week

28 flights

Seats / Week

50 seats/flight

1400 seats/week

Upcoming scheduled flights in the coming 30 days

Ad
  • Date
    Time
    From
    To
    Aircraft
    Status
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    02 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    03 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    04 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    05 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    06 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    07 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    08 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    09 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    10 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    11 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    12 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    13 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    14 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    15 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    16 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    17 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    18 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    19 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    20 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    21 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    22 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    23 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    24 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    25 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    26 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    27 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    28 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    29 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    30 Jun 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    01 Jul 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257
  • Date:
    Time:
    From:
    To:
    Aircraft:
    Status:
    02 Jul 2026
    09:00
    Dulles(IAD)
    Knoxville(TYS)
    Embraer RJ135 / RJ140 / RJ145
    UA4257

UAL4257 information

A domestic route in USA departing from Dulles (IAD) and arriving at Knoxville (TYS).

The timezones of the departure and arrival airports are identical, UTC -4.

The flight distance is 421 miles, or 677 km.

For direct flights, the flight time is about 1:42.

Other flights between Dulles and Knoxville with United
12:50
UA 4070
→
12:50
UA 6110
→
13:02
UA 4308
→
18:46
UA 4914
→
22:10
UA 4304
→
Ad