(UA) United Airlines 4257 Flight Details
On time | Scheduled
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
24-Feb-2026
Scheduled
09:00
EST
Estimated
09:00
EST
Total Departure Delay: -
Flight Runway Times
24-Feb-2026
Scheduled
09:21
EST
Estimated
09:21
EST
Runway Delay: -
Terminal
-
Gate
A4C
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 49m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
24-Feb-2026
Scheduled
10:49
EST
Estimated
10:49
EST
Total Arrival Delay: -
Flight Runway Times
24-Feb-2026
Scheduled
10:45
EST
Estimated
10:45
EST
Runway Delay: -
Terminal
-
Gate
11
Baggage Claim
-
Tail Number
N11192
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
Date
Event
Data Updated
24 Feb
13:52
08:52
08:52
Gate Adjustment
Arrival Gate changed to 11
24 Feb
13:48
08:48
08:48
Time Adjustment
Estimated Runway Arrival changed to Feb-24-2026 10:45 AM
24 Feb
11:58
06:58
06:58
Time Adjustment
Estimated Runway Departure changed to Feb-24-2026 9:21 AM
24 Feb
07:09
02:09
02:09
Gate Adjustment
Departure Gate changed from A5B to A4C
24 Feb
06:46
01:46
01:46
Equipment Adjustment
Tail Number changed from N17196 to N11192
23 Feb
17:34
12:34
12:34
Gate Adjustment
Departure Gate changed from A6A to A5B
23 Feb
17:33
12:33
12:33
Gate Adjustment
Departure Gate changed from A4C to A6A
23 Feb
14:06
09:06
09:06
Time Adjustment
Scheduled Runway Departure changed from Feb-24-2026 9:09 AM to Feb-24-2026 9:21 AM
Scheduled Runway Arrival changed from Feb-24-2026 10:10 AM to Feb-24-2026 10:45 AM
23 Feb
14:01
09:01
09:01
Time Adjustment
Scheduled Runway Departure changed to Feb-24-2026 9:09 AM
Scheduled Runway Arrival changed to Feb-24-2026 10:10 AM
23 Feb
06:52
01:52
01:52
Gate Adjustment
Departure Gate changed from A5A to A4C
23 Feb
06:52
01:52
01:52
Time Adjustment
Estimated Gate Departure changed to Feb-24-2026 9:00 AM
Estimated Gate Arrival changed to Feb-24-2026 10:49 AM
Tail Number changed to N17196
Actual Equipment changed to E45
23 Feb
06:52
01:52
01:52
Gate Adjustment
Departure Gate changed to A5A
21 Feb
18:45
13:45
13:45
Record Created
21 Feb
18:45
13:45
13:45
Time Adjustment
Scheduled Gate Departure changed to Feb-24-2026 9:00 AM
Scheduled Gate Arrival changed to Feb-24-2026 10:49 AM
Scheduled Equipment changed to ERJ