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(UA) United Airlines 4257 Flight Details

On time | Scheduled

Departure

IAD

Washington Dulles International Airport, VA, US

Flight Gate Times

02-Mar-2026

Scheduled

09:00

 EST

Estimated

09:00

 EST

Total Departure Delay: -

Flight Runway Times

02-Mar-2026

Scheduled

09:21

 EST

Actual

--

Runway Delay: -

Terminal

-

Gate

A1C

Craft Type

Embraer EMB-145XR

E45

Flight Time

Scheduled

1h 49m

Arrival

TYS

Knoxville McGhee Tyson Airport, TN, US

Flight Gate Times

02-Mar-2026

Scheduled

10:49

 EST

Estimated

10:49

 EST

Total Arrival Delay: -

Flight Runway Times

02-Mar-2026

Scheduled

10:45

 EST

Actual

--

Runway Delay: -

Terminal

-

Gate

-

Baggage Claim

-

Tail Number

N12160

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

2 Mar

02:44

Tail Number changed from N12145 to N12160

1 Mar

15:32

Departure Gate changed from A4E to A1C

1 Mar

14:07

Scheduled Runway Departure changed from Mar-02-2026 9:09 AM to Mar-02-2026 9:21 AM

Scheduled Runway Arrival changed from Mar-02-2026 10:13 AM to Mar-02-2026 10:45 AM

1 Mar

14:01

Scheduled Runway Departure changed to Mar-02-2026 9:09 AM

Scheduled Runway Arrival changed to Mar-02-2026 10:13 AM

1 Mar

06:50

Estimated Gate Departure changed to Mar-02-2026 9:00 AM

Estimated Gate Arrival changed to Mar-02-2026 10:49 AM

Tail Number changed to N12145

Actual Equipment changed to E45

1 Mar

06:50

Departure Gate changed to A4E

27 Feb

18:48

27 Feb

18:48

Scheduled Gate Departure changed to Mar-02-2026 9:00 AM

Scheduled Gate Arrival changed to Mar-02-2026 10:49 AM

Scheduled Equipment changed to ERJ