(UA) United Airlines 4308 Flight Details
On time | Scheduled
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
29-Mar-2026
Scheduled
13:20
EDT
Estimated
13:20
EDT
Total Departure Delay: -
Flight Runway Times
29-Mar-2026
Scheduled
13:37
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
A2E
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 49m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
29-Mar-2026
Scheduled
15:09
EDT
Estimated
15:09
EDT
Total Arrival Delay: -
Flight Runway Times
29-Mar-2026
Scheduled
15:06
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
N21154
Flight Time
Estimated
1h 49m
Flight Notes
Operated by CommuteAir on behalf of United Airlines
Also marketed as (AC) Air Canada 4257, (ET) Ethiopian Airlines 1378
Event Timeline
Date
Event
Data Updated
29 Mar
02:02
22:02
22:02
Gate Adjustment
Departure Gate changed from A4F to A2E
29 Mar
01:59
21:59
21:59
Time Adjustment
Scheduled Runway Departure changed from Mar-29-2026 1:41 PM to Mar-29-2026 1:37 PM
Scheduled Runway Arrival changed from Mar-29-2026 2:45 PM to Mar-29-2026 3:06 PM
28 Mar
17:45
13:45
13:45
Gate Adjustment
Departure Gate changed from A2E to A4F
28 Mar
17:44
13:44
13:44
Equipment Adjustment
Tail Number changed from N17159 to N21154
28 Mar
17:21
13:21
13:21
Time Adjustment
Scheduled Runway Departure changed to Mar-29-2026 1:41 PM
Scheduled Runway Arrival changed to Mar-29-2026 2:45 PM
28 Mar
16:14
12:14
12:14
Equipment Adjustment
Tail Number changed from N17146 to N17159
28 Mar
16:03
12:03
12:03
Equipment Adjustment
Tail Number changed from N12142 to N17146
28 Mar
15:44
11:44
11:44
Gate Adjustment
Departure Gate changed to A2E
28 Mar
05:51
01:51
01:51
Time Adjustment
Estimated Gate Departure changed to Mar-29-2026 1:20 PM
Estimated Gate Arrival changed to Mar-29-2026 3:09 PM
Tail Number changed to N12142
Actual Equipment changed to E45
26 Mar
18:47
14:47
14:47
Record Created
26 Mar
18:47
14:47
14:47
Time Adjustment
Scheduled Gate Departure changed to Mar-29-2026 1:20 PM
Scheduled Gate Arrival changed to Mar-29-2026 3:09 PM
Scheduled Equipment changed to ERJ