(UA) United Airlines 4257 Flight Details
On time | Arrived
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
22-Nov-2025
Scheduled
09:00
EST
Actual
08:54
EST
Total Departure Delay: -
Flight Runway Times
22-Nov-2025
Scheduled
09:21
EST
Actual
09:20
EST
Runway Delay: -
Terminal
-
Gate
A1
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 48m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
22-Nov-2025
Scheduled
10:48
EST
Actual
10:36
EST
Total Arrival Delay: -
Flight Runway Times
22-Nov-2025
Scheduled
10:44
EST
Actual
10:32
EST
Runway Delay: -
Terminal
-
Gate
11
Baggage Claim
3
Tail Number
N31131
Flight Time
Actual
1h 42m
Flight Notes
Operated by CommuteAir on behalf of United Airlines
Also marketed as (AC) Air Canada 4741, (CM) Copa Airlines 2237
Event Timeline
Date
Event
Data Updated
22 Nov
15:38
10:38
10:38
Time Adjustment
Estimated Gate Arrival changed from Nov-22-2025 10:48 AM to Nov-22-2025 10:36 AM
Actual Gate Arrival changed to Nov-22-2025 10:36 AM
22 Nov
15:34
10:34
10:34
Status Landed
Estimated Runway Arrival changed from Nov-22-2025 10:44 AM to Nov-22-2025 10:32 AM
Actual Runway Arrival changed to Nov-22-2025 10:32 AM
Status changed from Active to Landed
22 Nov
14:27
09:27
09:27
Time Adjustment
Estimated Runway Departure changed from Nov-22-2025 9:21 AM to Nov-22-2025 9:20 AM
Actual Runway Departure changed from Nov-22-2025 9:21 AM to Nov-22-2025 9:20 AM
Estimated Runway Arrival changed from Nov-22-2025 10:28 AM to Nov-22-2025 10:44 AM
22 Nov
14:23
09:23
09:23
Time Adjustment
Estimated Runway Arrival changed from Nov-22-2025 10:27 AM to Nov-22-2025 10:28 AM
22 Nov
14:21
09:21
09:21
Time Adjustment
Actual Runway Departure changed to Nov-22-2025 9:21 AM
Estimated Runway Arrival changed from Nov-22-2025 10:44 AM to Nov-22-2025 10:27 AM
22 Nov
13:57
08:57
08:57
Status Active
Estimated Gate Departure changed from Nov-22-2025 9:00 AM to Nov-22-2025 8:54 AM
Actual Gate Departure changed to Nov-22-2025 8:54 AM
Baggage changed to 3
Status changed from Scheduled to Active
22 Nov
13:55
08:55
08:55
Time Adjustment
Estimated Runway Arrival changed to Nov-22-2025 10:44 AM
22 Nov
12:45
07:45
07:45
Time Adjustment
Estimated Runway Departure changed to Nov-22-2025 9:21 AM
22 Nov
09:27
04:27
04:27
Gate Adjustment
Arrival Gate changed to 11
22 Nov
07:57
02:57
02:57
Gate Adjustment
Departure Gate changed from A5A to A5C
22 Nov
07:57
02:57
02:57
Gate Adjustment
Departure Gate changed from A5C to A1
22 Nov
06:51
01:51
01:51
Equipment Adjustment
Tail Number changed from N12167 to N31131
21 Nov
18:39
13:39
13:39
Equipment Adjustment
Tail Number changed from N14125 to N12167
21 Nov
14:06
09:06
09:06
Time Adjustment
Scheduled Runway Departure changed from Nov-22-2025 9:05 AM to Nov-22-2025 9:21 AM
Scheduled Runway Arrival changed from Nov-22-2025 10:09 AM to Nov-22-2025 10:44 AM
21 Nov
14:01
09:01
09:01
Time Adjustment
Scheduled Runway Departure changed to Nov-22-2025 9:05 AM
Scheduled Runway Arrival changed to Nov-22-2025 10:09 AM
21 Nov
06:51
01:51
01:51
Gate Adjustment
Departure Gate changed from A2E to A5A
21 Nov
02:15
21:15
21:15
Gate Adjustment
Departure Gate changed to A2E
20 Nov
18:33
13:33
13:33
Equipment Adjustment
Tail Number changed from N14177 to N14125
20 Nov
17:15
12:15
12:15
Time Adjustment
Estimated Gate Departure changed to Nov-22-2025 9:00 AM
Estimated Gate Arrival changed to Nov-22-2025 10:48 AM
Tail Number changed to N14177
Actual Equipment changed to E45
19 Nov
18:44
13:44
13:44
Record Created
19 Nov
18:44
13:44
13:44
Time Adjustment
Scheduled Gate Departure changed to Nov-22-2025 9:00 AM
Scheduled Gate Arrival changed to Nov-22-2025 10:48 AM
Scheduled Equipment changed to ERJ