(UA) United Airlines 4257 Flight Details
Cancelled
Flight Cancelled
One or more of our data sources have indicated that this flight has been cancelled. Please contact the airline for more details.
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
26-Jan-2026
Scheduled
09:00
EST
Actual
--
Total Departure Delay: -
Flight Runway Times
26-Jan-2026
Scheduled
--
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 57m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
26-Jan-2026
Scheduled
10:57
EST
Actual
--
Total Arrival Delay: -
Flight Runway Times
26-Jan-2026
Scheduled
--
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
N11184
Flight Time
Estimated
1h 57m
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 Jan
07:07
02:07
02:07
Status Cancelled
Status changed from Scheduled to Cancelled
24 Jan
05:37
00:37
00:37
Time Adjustment
Estimated Gate Departure changed to Jan-26-2026 9:00 AM
Estimated Gate Arrival changed to Jan-26-2026 10:57 AM
Tail Number changed to N11184
Actual Equipment changed to E45
23 Jan
18:46
13:46
13:46
Record Created
23 Jan
18:46
13:46
13:46
Time Adjustment
Scheduled Gate Departure changed to Jan-26-2026 9:00 AM
Scheduled Gate Arrival changed to Jan-26-2026 10:57 AM
Scheduled Equipment changed to ERJ