(UA) United Airlines 4308 Flight Details
On time | Arrived
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
19-Dec-2025
Scheduled
12:55
EST
Actual
12:50
EST
Total Departure Delay: -
Flight Runway Times
19-Dec-2025
Scheduled
13:15
EST
Actual
13:19
EST
Runway Delay: 4 mins
Terminal
-
Gate
A4B
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 53m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
19-Dec-2025
Scheduled
14:48
EST
Actual
14:39
EST
Total Arrival Delay: -
Flight Runway Times
19-Dec-2025
Scheduled
14:45
EST
Actual
14:33
EST
Runway Delay: -
Terminal
-
Gate
11
Baggage Claim
3
Tail Number
N23139
Flight Time
Actual
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
19 Dec
19:43
14:43
14:43
Time Adjustment
Estimated Gate Arrival changed from Dec-19-2025 2:41 PM to Dec-19-2025 2:39 PM
Actual Gate Arrival changed to Dec-19-2025 2:39 PM
19 Dec
19:35
14:35
14:35
Status Landed
Estimated Runway Arrival changed from Dec-19-2025 2:38 PM to Dec-19-2025 2:33 PM
Actual Runway Arrival changed to Dec-19-2025 2:33 PM
Status changed from Active to Landed
19 Dec
18:25
13:25
13:25
Time Adjustment
Estimated Runway Departure changed from Dec-19-2025 1:20 PM to Dec-19-2025 1:19 PM
Actual Runway Departure changed from Dec-19-2025 1:20 PM to Dec-19-2025 1:19 PM
Estimated Runway Arrival changed from Dec-19-2025 2:26 PM to Dec-19-2025 2:38 PM
Estimated Gate Arrival changed from Dec-19-2025 2:48 PM to Dec-19-2025 2:41 PM
19 Dec
18:22
13:22
13:22
Time Adjustment
Estimated Runway Arrival changed from Dec-19-2025 2:25 PM to Dec-19-2025 2:26 PM
19 Dec
18:20
13:20
13:20
Time Adjustment
Estimated Runway Departure changed from Dec-19-2025 1:15 PM to Dec-19-2025 1:20 PM
Actual Runway Departure changed to Dec-19-2025 1:20 PM
Estimated Runway Arrival changed from Dec-19-2025 2:38 PM to Dec-19-2025 2:25 PM
19 Dec
18:14
13:14
13:14
Time Adjustment
Estimated Runway Arrival changed from Dec-19-2025 2:23 PM to Dec-19-2025 2:38 PM
19 Dec
17:55
12:55
12:55
Status Active
Estimated Gate Departure changed from Dec-19-2025 12:55 PM to Dec-19-2025 12:50 PM
Actual Gate Departure changed to Dec-19-2025 12:50 PM
Status changed from Scheduled to Active
19 Dec
17:53
12:53
12:53
Time Adjustment
Estimated Runway Arrival changed to Dec-19-2025 2:23 PM
19 Dec
16:40
11:40
11:40
Time Adjustment
Estimated Runway Departure changed to Dec-19-2025 1:15 PM
19 Dec
14:19
09:19
09:19
Gate Adjustment
Departure Gate changed from A4B to A2E
19 Dec
14:19
09:19
09:19
Gate Adjustment
Departure Gate changed from A2E to A4B
19 Dec
14:13
09:13
09:13
Gate Adjustment
Departure Gate changed from A6A to A4B
19 Dec
10:25
05:25
05:25
Gate Adjustment
Arrival Gate changed to 11
Baggage changed to 3
19 Dec
06:49
01:49
01:49
Equipment Adjustment
Tail Number changed from N21154 to N23139
18 Dec
22:49
17:49
17:49
Gate Adjustment
Departure Gate changed from A4A to A6A
18 Dec
18:01
13:01
13:01
Time Adjustment
Scheduled Runway Arrival changed from Dec-19-2025 2:20 PM to Dec-19-2025 2:45 PM
18 Dec
17:56
12:56
12:56
Time Adjustment
Scheduled Runway Departure changed to Dec-19-2025 1:15 PM
Scheduled Runway Arrival changed to Dec-19-2025 2:20 PM
18 Dec
17:19
12:19
12:19
Gate Adjustment
Departure Gate changed to A4A
18 Dec
06:51
01:51
01:51
Time Adjustment
Estimated Gate Departure changed to Dec-19-2025 12:55 PM
Estimated Gate Arrival changed to Dec-19-2025 2:48 PM
Tail Number changed to N21154
Actual Equipment changed to E45
16 Dec
18:49
13:49
13:49
Record Created
16 Dec
18:49
13:49
13:49
Time Adjustment
Scheduled Gate Departure changed to Dec-19-2025 12:55 PM
Scheduled Gate Arrival changed to Dec-19-2025 2:48 PM
Scheduled Equipment changed to ERJ