(UA) United Airlines 4257 Flight Details
Diverted to IAD
Flight Diverted
The flight has landed at different airport than originally scheduled. Usually the airline will depart at a later time to get to the original destination. Please contact the airline for more details.
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
10-Feb-2026
Scheduled
09:00
EST
Actual
08:51
EST
Total Departure Delay: -
Flight Runway Times
10-Feb-2026
Scheduled
09:21
EST
Actual
--
Runway Delay: -
Terminal
-
Gate
A3C
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 57m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
10-Feb-2026
Scheduled
10:57
EST
Actual
09:05
EST
Total Arrival Delay: -
Flight Runway Times
10-Feb-2026
Scheduled
--
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
N14188
Flight Time
Actual
14m
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
10 Feb
14:14
09:14
09:14
Status Diverted
Estimated Runway Departure changed from Feb-10-2026 9:46 AM
Scheduled Runway Arrival changed from Feb-10-2026 10:53 AM
Estimated Runway Arrival changed from Feb-10-2026 10:40 AM
Estimated Gate Arrival changed from Feb-10-2026 10:57 AM to Feb-10-2026 9:05 AM
Actual Gate Arrival changed to Feb-10-2026 9:05 AM
Status changed from Active to Diverted
Redirected/diverted airport changed to IAD
10 Feb
14:05
09:05
09:05
Time Adjustment
Estimated Runway Departure changed from Feb-10-2026 9:21 AM to Feb-10-2026 9:46 AM
Estimated Runway Arrival changed from Feb-10-2026 10:20 AM to Feb-10-2026 10:40 AM
10 Feb
13:56
08:56
08:56
Status Active
Estimated Gate Departure changed from Feb-10-2026 9:00 AM to Feb-10-2026 8:51 AM
Actual Gate Departure changed to Feb-10-2026 8:51 AM
Estimated Gate Arrival changed from Feb-10-2026 10:24 AM to Feb-10-2026 10:57 AM
Status changed from Scheduled to Active
10 Feb
13:52
08:52
08:52
Time Adjustment
Estimated Runway Arrival changed from Feb-10-2026 10:53 AM to Feb-10-2026 10:20 AM
Estimated Gate Arrival changed from Feb-10-2026 10:57 AM to Feb-10-2026 10:24 AM
10 Feb
13:52
08:52
08:52
Time Adjustment
Estimated Runway Arrival changed to Feb-10-2026 10:53 AM
10 Feb
12:16
07:16
07:16
Time Adjustment
Estimated Runway Departure changed to Feb-10-2026 9:21 AM
10 Feb
08:48
03:48
03:48
Gate Adjustment
Departure Gate changed from A2E to A3C
10 Feb
08:16
03:16
03:16
Gate Adjustment
Departure Gate changed from A3C to A2E
10 Feb
08:08
03:08
03:08
Gate Adjustment
Departure Gate changed from A2E to A3C
10 Feb
07:56
02:56
02:56
Gate Adjustment
Departure Gate changed from A6A to A2E
10 Feb
06:50
01:50
01:50
Equipment Adjustment
Tail Number changed from N14125 to N14188
9 Feb
14:06
09:06
09:06
Time Adjustment
Scheduled Runway Departure changed from Feb-10-2026 9:16 AM to Feb-10-2026 9:21 AM
Scheduled Runway Arrival changed from Feb-10-2026 10:18 AM to Feb-10-2026 10:53 AM
9 Feb
14:01
09:01
09:01
Time Adjustment
Scheduled Runway Departure changed to Feb-10-2026 9:16 AM
Scheduled Runway Arrival changed to Feb-10-2026 10:18 AM
9 Feb
06:50
01:50
01:50
Time Adjustment
Estimated Gate Departure changed to Feb-10-2026 9:00 AM
Estimated Gate Arrival changed to Feb-10-2026 10:57 AM
Tail Number changed to N14125
Actual Equipment changed to E45
9 Feb
06:50
01:50
01:50
Gate Adjustment
Departure Gate changed to A6A
7 Feb
18:44
13:44
13:44
Record Created
7 Feb
18:44
13:44
13:44
Time Adjustment
Scheduled Gate Departure changed to Feb-10-2026 9:00 AM
Scheduled Gate Arrival changed to Feb-10-2026 10:57 AM
Scheduled Equipment changed to ERJ