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(UA) United Airlines 4257 Flight Details

On time | Scheduled

Departure

IAD

Washington Dulles International Airport, VA, US

Flight Gate Times

25-Feb-2026

Scheduled

09:00

 EST

Estimated

09:00

 EST

Total Departure Delay: -

Flight Runway Times

25-Feb-2026

Scheduled

09:21

 EST

Estimated

09:21

 EST

Runway Delay: -

Terminal

-

Gate

A5B

Craft Type

Embraer EMB-145XR

E45

Flight Time

Scheduled

1h 49m

Arrival

TYS

Knoxville McGhee Tyson Airport, TN, US

Flight Gate Times

25-Feb-2026

Scheduled

10:49

 EST

Estimated

10:49

 EST

Total Arrival Delay: -

Flight Runway Times

25-Feb-2026

Scheduled

10:45

 EST

Estimated

10:45

 EST

Runway Delay: -

Terminal

-

Gate

-

Baggage Claim

-

Tail Number

N11165

Flight Time

Estimated

1h 49m

Flight Notes

Operated by CommuteAir on behalf of United Airlines

Also marketed as (AC) Air Canada 4741, (AV) Avianca 2346, (CM) Copa Airlines 2237

Event Timeline

Time

Date

UTC

Event

Data Updated

25 Feb

10:31

Departure Gate changed from A4A to A5B

25 Feb

10:27

Estimated Runway Departure changed to Feb-25-2026 9:21 AM

Estimated Runway Arrival changed to Feb-25-2026 10:45 AM

24 Feb

19:46

Departure Gate changed from A4E to A4A

24 Feb

17:03

Tail Number changed from N31131 to N11165

24 Feb

14:06

Scheduled Runway Departure changed from Feb-25-2026 9:09 AM to Feb-25-2026 9:21 AM

Scheduled Runway Arrival changed from Feb-25-2026 10:11 AM to Feb-25-2026 10:45 AM

24 Feb

14:01

Scheduled Runway Departure changed to Feb-25-2026 9:09 AM

Scheduled Runway Arrival changed to Feb-25-2026 10:11 AM

24 Feb

12:22

Departure Gate changed to A4E

24 Feb

00:57

Estimated Gate Departure changed to Feb-25-2026 9:00 AM

Estimated Gate Arrival changed to Feb-25-2026 10:49 AM

Tail Number changed to N31131

Actual Equipment changed to E45

22 Feb

18:46

22 Feb

18:46

Scheduled Gate Departure changed to Feb-25-2026 9:00 AM

Scheduled Gate Arrival changed to Feb-25-2026 10:49 AM

Scheduled Equipment changed to ERJ