(UA) United Airlines 4257 Flight Details
On time | Departed
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
27-Mar-2026
Scheduled
09:00
EDT
Actual
08:54
EDT
Total Departure Delay: -
Flight Runway Times
27-Mar-2026
Scheduled
09:21
EDT
Actual
09:10
EDT
Runway Delay: -
Terminal
-
Gate
A5C
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 49m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
27-Mar-2026
Scheduled
10:49
EDT
Estimated
10:29
EDT
Total Arrival Delay: -
Flight Runway Times
27-Mar-2026
Scheduled
10:45
EDT
Estimated
10:25
EDT
Runway Delay: -
Terminal
-
Gate
11
Baggage Claim
3
Tail Number
N13202
Flight Time
Estimated
1h 35m
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
27 Mar
13:14
09:14
09:14
Time Adjustment
Estimated Runway Arrival changed from Mar-27-2026 10:16 AM to Mar-27-2026 10:25 AM
Estimated Gate Arrival changed from Mar-27-2026 10:49 AM to Mar-27-2026 10:29 AM
27 Mar
13:13
09:13
09:13
Time Adjustment
Estimated Runway Arrival changed from Mar-27-2026 10:13 AM to Mar-27-2026 10:16 AM
27 Mar
13:11
09:11
09:11
Time Adjustment
Estimated Runway Departure changed from Mar-27-2026 9:21 AM to Mar-27-2026 9:10 AM
Actual Runway Departure changed to Mar-27-2026 9:10 AM
Estimated Runway Arrival changed from Mar-27-2026 10:25 AM to Mar-27-2026 10:13 AM
27 Mar
13:02
09:02
09:02
Time Adjustment
Estimated Gate Departure changed from Mar-27-2026 8:55 AM to Mar-27-2026 8:54 AM
Actual Gate Departure changed from Mar-27-2026 8:55 AM to Mar-27-2026 8:54 AM
Estimated Gate Arrival changed from Mar-27-2026 10:29 AM to Mar-27-2026 10:49 AM
27 Mar
13:00
09:00
09:00
Status Active
Estimated Gate Departure changed from Mar-27-2026 9:00 AM to Mar-27-2026 8:55 AM
Actual Gate Departure changed to Mar-27-2026 8:55 AM
Status changed from Scheduled to Active
27 Mar
12:57
08:57
08:57
Time Adjustment
Estimated Runway Arrival changed from Mar-27-2026 10:45 AM to Mar-27-2026 10:25 AM
Estimated Gate Arrival changed from Mar-27-2026 10:49 AM to Mar-27-2026 10:29 AM
27 Mar
12:57
08:57
08:57
Time Adjustment
Estimated Runway Arrival changed to Mar-27-2026 10:45 AM
27 Mar
11:51
07:51
07:51
Time Adjustment
Estimated Runway Departure changed to Mar-27-2026 9:21 AM
27 Mar
08:26
04:26
04:26
Gate Adjustment
Arrival Gate changed to 11
Baggage changed to 3
27 Mar
07:26
03:26
03:26
Gate Adjustment
Departure Gate changed from A3A to A5C
27 Mar
07:20
03:20
03:20
Gate Adjustment
Departure Gate changed from A3C to A3A
27 Mar
05:50
01:50
01:50
Equipment Adjustment
Tail Number changed from N13161 to N13202
26 Mar
21:26
17:26
17:26
Gate Adjustment
Departure Gate changed from A4C to A3C
26 Mar
21:26
17:26
17:26
Gate Adjustment
Departure Gate changed from A6A to A4C
26 Mar
13:06
09:06
09:06
Time Adjustment
Scheduled Runway Departure changed from Mar-27-2026 9:04 AM to Mar-27-2026 9:21 AM
Scheduled Runway Arrival changed from Mar-27-2026 10:06 AM to Mar-27-2026 10:45 AM
26 Mar
13:01
09:01
09:01
Time Adjustment
Scheduled Runway Departure changed to Mar-27-2026 9:04 AM
Scheduled Runway Arrival changed to Mar-27-2026 10:06 AM
26 Mar
05:56
01:56
01:56
Gate Adjustment
Departure Gate changed from A1C to A6A
26 Mar
05:50
01:50
01:50
Equipment Adjustment
Tail Number changed from N14168 to N13161
26 Mar
01:02
21:02
21:02
Gate Adjustment
Departure Gate changed to A1C
25 Mar
05:51
01:51
01:51
Time Adjustment
Estimated Gate Departure changed to Mar-27-2026 9:00 AM
Estimated Gate Arrival changed to Mar-27-2026 10:49 AM
Tail Number changed to N14168
Actual Equipment changed to E45
24 Mar
18:48
14:48
14:48
Record Created
24 Mar
18:48
14:48
14:48
Time Adjustment
Scheduled Gate Departure changed to Mar-27-2026 9:00 AM
Scheduled Gate Arrival changed to Mar-27-2026 10:49 AM
Scheduled Equipment changed to ERJ