(UA) United Airlines 4257 Flight Details
On time | Scheduled
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
13-Oct-2026
Scheduled
09:00
EDT
Estimated
09:00
EDT
Total Departure Delay: -
Flight Runway Times
13-Oct-2026
Scheduled
09:17
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
A2E
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 37m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
13-Oct-2026
Scheduled
10:37
EDT
Estimated
10:37
EDT
Total Arrival Delay: -
Flight Runway Times
13-Oct-2026
Scheduled
10:33
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
N16183
Flight Time
Estimated
1h 37m
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
12 Oct
20:26
16:26
16:26
Gate Adjustment
Departure Gate changed from A6B to A2E
12 Oct
13:06
09:06
09:06
Time Adjustment
Scheduled Runway Departure changed to Oct-13-2026 9:17 AM
Scheduled Runway Arrival changed to Oct-13-2026 10:33 AM
12 Oct
11:20
07:20
07:20
Gate Adjustment
Departure Gate changed to A6B
12 Oct
05:50
01:50
01:50
Equipment Adjustment
Tail Number changed from N10156 to N16183
11 Oct
05:50
01:50
01:50
Time Adjustment
Estimated Gate Departure changed to Oct-13-2026 9:00 AM
Estimated Gate Arrival changed to Oct-13-2026 10:37 AM
Tail Number changed to N10156
Actual Equipment changed to E45
10 Oct
18:47
14:47
14:47
Record Created
10 Oct
18:47
14:47
14:47
Time Adjustment
Scheduled Gate Departure changed to Oct-13-2026 9:00 AM
Scheduled Gate Arrival changed to Oct-13-2026 10:37 AM
Scheduled Equipment changed to ERJ