(UA) United Airlines 4257 Flight Details
On time | Scheduled
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
03-Apr-2026
Scheduled
09:00
EDT
Estimated
09:00
EDT
Total Departure Delay: -
Flight Runway Times
03-Apr-2026
Scheduled
09:21
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
A6A
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 50m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
03-Apr-2026
Scheduled
10:50
EDT
Estimated
10:50
EDT
Total Arrival Delay: -
Flight Runway Times
03-Apr-2026
Scheduled
10:46
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
N14203
Flight Time
Estimated
1h 50m
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
2 Apr
21:03
17:03
17:03
Gate Adjustment
Departure Gate changed from A6C to A6A
2 Apr
14:56
10:56
10:56
Gate Adjustment
Departure Gate changed from A1 to A6C
2 Apr
14:51
10:51
10:51
Gate Adjustment
Departure Gate changed from A4B to A1
2 Apr
14:32
10:32
10:32
Gate Adjustment
Departure Gate changed from A1 to A4B
2 Apr
14:31
10:31
10:31
Time Adjustment
Scheduled Runway Departure changed to Apr-03-2026 9:21 AM
Scheduled Runway Arrival changed to Apr-03-2026 10:46 AM
2 Apr
12:32
08:32
08:32
Gate Adjustment
Departure Gate changed from A4B to A1
2 Apr
12:20
08:20
08:20
Equipment Adjustment
Tail Number changed to N14203
Actual Equipment changed to E45
2 Apr
12:02
08:02
08:02
Time Adjustment
Estimated Gate Departure changed to Apr-03-2026 9:00 AM
Estimated Gate Arrival changed to Apr-03-2026 10:50 AM
Departure Gate changed to A4B
31 Mar
18:48
14:48
14:48
Record Created
31 Mar
18:48
14:48
14:48
Time Adjustment
Scheduled Gate Departure changed to Apr-03-2026 9:00 AM
Scheduled Gate Arrival changed to Apr-03-2026 10:50 AM
Scheduled Equipment changed to ERJ