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(UA) United Airlines 4257 Flight Details

On time | Arrived

Departure

IAD

Washington Dulles International Airport, VA, US

Flight Gate Times

28-Feb-2026

Scheduled

09:00

 EST

Actual

08:54

 EST

Total Departure Delay: -

Flight Runway Times

28-Feb-2026

Scheduled

09:21

 EST

Actual

09:08

 EST

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

28-Feb-2026

Scheduled

10:49

 EST

Actual

10:38

 EST

Total Arrival Delay: -

Flight Runway Times

28-Feb-2026

Scheduled

10:45

 EST

Actual

10:31

 EST

Runway Delay: -

Terminal

-

Gate

11

Baggage Claim

3

Tail Number

N16151

Flight Time

Actual

1h 44m

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

28 Feb

15:41

Estimated Gate Arrival changed from Feb-28-2026 10:36 AM to Feb-28-2026 10:38 AM

Actual Gate Arrival changed to Feb-28-2026 10:38 AM

28 Feb

15:38

Estimated Runway Arrival changed from Feb-28-2026 10:32 AM to Feb-28-2026 10:31 AM

Actual Runway Arrival changed from Feb-28-2026 10:32 AM to Feb-28-2026 10:31 AM

Estimated Gate Arrival changed to Feb-28-2026 10:36 AM

28 Feb

15:32

Estimated Runway Arrival changed from Feb-28-2026 10:25 AM to Feb-28-2026 10:32 AM

Actual Runway Arrival changed to Feb-28-2026 10:32 AM

Estimated Gate Arrival changed from Feb-28-2026 10:29 AM

Status changed from Active to Landed

28 Feb

14:14

Estimated Runway Arrival changed from Feb-28-2026 10:11 AM to Feb-28-2026 10:25 AM

Estimated Gate Arrival changed from Feb-28-2026 10:49 AM to Feb-28-2026 10:29 AM

28 Feb

14:09

Estimated Runway Departure changed from Feb-28-2026 9:21 AM to Feb-28-2026 9:08 AM

Actual Runway Departure changed to Feb-28-2026 9:08 AM

Estimated Runway Arrival changed from Feb-28-2026 10:25 AM to Feb-28-2026 10:11 AM

28 Feb

13:56

Estimated Gate Departure changed from Feb-28-2026 9:00 AM to Feb-28-2026 8:54 AM

Actual Gate Departure changed to Feb-28-2026 8:54 AM

Estimated Gate Arrival changed from Feb-28-2026 10:29 AM to Feb-28-2026 10:49 AM

Status changed from Scheduled to Active

28 Feb

13:56

Estimated Runway Arrival changed to Feb-28-2026 10:45 AM

28 Feb

13:56

Estimated Runway Arrival changed from Feb-28-2026 10:45 AM to Feb-28-2026 10:25 AM

Estimated Gate Arrival changed from Feb-28-2026 10:49 AM to Feb-28-2026 10:29 AM

28 Feb

12:44

Estimated Runway Departure changed to Feb-28-2026 9:21 AM

28 Feb

09:26

Arrival Gate changed to 11

Baggage changed to 3

28 Feb

06:50

Tail Number changed from N14186 to N16151

28 Feb

03:21

Departure Gate changed from 1 to A1C

27 Feb

14:07

Scheduled Runway Departure changed from Feb-28-2026 9:09 AM to Feb-28-2026 9:21 AM

Scheduled Runway Arrival changed from Feb-28-2026 10:14 AM to Feb-28-2026 10:45 AM

27 Feb

14:01

Scheduled Runway Departure changed to Feb-28-2026 9:09 AM

Scheduled Runway Arrival changed to Feb-28-2026 10:14 AM

27 Feb

12:58

Departure Gate changed from A1C to 1

27 Feb

12:42

Departure Gate changed from A1 to A1C

27 Feb

12:38

Departure Gate changed from A1C to A1

27 Feb

12:32

Departure Gate changed from A4F to A1C

27 Feb

06:50

Estimated Gate Departure changed to Feb-28-2026 9:00 AM

Estimated Gate Arrival changed to Feb-28-2026 10:49 AM

Tail Number changed to N14186

Actual Equipment changed to E45

27 Feb

06:50

Departure Gate changed to A4F

25 Feb

18:45

25 Feb

18:45

Scheduled Gate Departure changed to Feb-28-2026 9:00 AM

Scheduled Gate Arrival changed to Feb-28-2026 10:49 AM

Scheduled Equipment changed to ERJ