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(UA) United Airlines 4308 Flight Details

On time | Scheduled

Departure

IAD

Washington Dulles International Airport, VA, US

Flight Gate Times

19-Dec-2025

Scheduled

12:55

 EST

Estimated

12:55

 EST

Total Departure Delay: -

Flight Runway Times

19-Dec-2025

Scheduled

13:15

 EST

Actual

--

Runway Delay: -

Terminal

-

Gate

A4B

Craft Type

Embraer EMB-145XR

E45

Flight Time

Scheduled

1h 53m

Arrival

TYS

Knoxville McGhee Tyson Airport, TN, US

Flight Gate Times

19-Dec-2025

Scheduled

14:48

 EST

Estimated

14:48

 EST

Total Arrival Delay: -

Flight Runway Times

19-Dec-2025

Scheduled

14:45

 EST

Actual

--

Runway Delay: -

Terminal

-

Gate

11

Baggage Claim

3

Tail Number

N23139

Flight Time

Estimated

1h 53m

Flight Notes

Operated by CommuteAir on behalf of United Airlines

Also marketed as (AC) Air Canada 4257, (ET) Ethiopian Airlines 1378

Event Timeline

Time

Date

UTC

Event

Data Updated

19 Dec

14:19

Departure Gate changed from A4B to A2E

19 Dec

14:19

Departure Gate changed from A2E to A4B

19 Dec

14:13

Departure Gate changed from A6A to A4B

19 Dec

10:25

Arrival Gate changed to 11

Baggage changed to 3

19 Dec

06:49

Tail Number changed from N21154 to N23139

18 Dec

22:49

Departure Gate changed from A4A to A6A

18 Dec

18:01

Scheduled Runway Arrival changed from Dec-19-2025 2:20 PM to Dec-19-2025 2:45 PM

18 Dec

17:56

Scheduled Runway Departure changed to Dec-19-2025 1:15 PM

Scheduled Runway Arrival changed to Dec-19-2025 2:20 PM

18 Dec

17:19

Departure Gate changed to A4A

18 Dec

06:51

Estimated Gate Departure changed to Dec-19-2025 12:55 PM

Estimated Gate Arrival changed to Dec-19-2025 2:48 PM

Tail Number changed to N21154

Actual Equipment changed to E45

16 Dec

18:49

16 Dec

18:49

Scheduled Gate Departure changed to Dec-19-2025 12:55 PM

Scheduled Gate Arrival changed to Dec-19-2025 2:48 PM

Scheduled Equipment changed to ERJ