(UA) United Airlines 4308 Flight Details
On time | Arrived
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
23-Mar-2026
Scheduled
12:55
EDT
Actual
12:53
EDT
Total Departure Delay: -
Flight Runway Times
23-Mar-2026
Scheduled
13:15
EDT
Actual
13:25
EDT
Runway Delay: 10 mins
Terminal
-
Gate
A5A
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 55m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
23-Mar-2026
Scheduled
14:50
EDT
Actual
14:42
EDT
Total Arrival Delay: -
Flight Runway Times
23-Mar-2026
Scheduled
14:47
EDT
Actual
14:38
EDT
Runway Delay: -
Terminal
-
Gate
11
Baggage Claim
-
Tail Number
N12135
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
23 Mar
18:44
14:44
14:44
Time Adjustment
Estimated Gate Arrival changed from Mar-23-2026 2:41 PM to Mar-23-2026 2:42 PM
Actual Gate Arrival changed to Mar-23-2026 2:42 PM
23 Mar
18:38
14:38
14:38
Status Landed
Actual Runway Arrival changed to Mar-23-2026 2:38 PM
Status changed from Active to Landed
23 Mar
17:32
13:32
13:32
Time Adjustment
Estimated Runway Arrival changed from Mar-23-2026 2:34 PM to Mar-23-2026 2:38 PM
Estimated Gate Arrival changed from Mar-23-2026 2:50 PM to Mar-23-2026 2:41 PM
23 Mar
17:28
13:28
13:28
Time Adjustment
Estimated Runway Departure changed from Mar-23-2026 1:24 PM to Mar-23-2026 1:25 PM
Actual Runway Departure changed from Mar-23-2026 1:24 PM to Mar-23-2026 1:25 PM
23 Mar
17:27
13:27
13:27
Time Adjustment
Estimated Runway Arrival changed from Mar-23-2026 2:29 PM to Mar-23-2026 2:34 PM
23 Mar
17:27
13:27
13:27
Time Adjustment
Estimated Runway Departure changed from Mar-23-2026 1:25 PM to Mar-23-2026 1:24 PM
Actual Runway Departure changed from Mar-23-2026 1:25 PM to Mar-23-2026 1:24 PM
23 Mar
17:26
13:26
13:26
Time Adjustment
Estimated Runway Departure changed from Mar-23-2026 1:15 PM to Mar-23-2026 1:25 PM
Actual Runway Departure changed to Mar-23-2026 1:25 PM
Estimated Runway Arrival changed from Mar-23-2026 2:38 PM to Mar-23-2026 2:29 PM
23 Mar
17:13
13:13
13:13
Time Adjustment
Estimated Runway Arrival changed from Mar-23-2026 2:23 PM to Mar-23-2026 2:38 PM
23 Mar
16:56
12:56
12:56
Status Active
Estimated Gate Departure changed from Mar-23-2026 12:55 PM to Mar-23-2026 12:53 PM
Actual Gate Departure changed to Mar-23-2026 12:53 PM
Estimated Gate Arrival changed from Mar-23-2026 2:26 PM to Mar-23-2026 2:50 PM
Status changed from Scheduled to Active
23 Mar
16:55
12:55
12:55
Time Adjustment
Estimated Runway Arrival changed to Mar-23-2026 2:47 PM
23 Mar
16:55
12:55
12:55
Time Adjustment
Estimated Runway Arrival changed from Mar-23-2026 2:47 PM to Mar-23-2026 2:23 PM
Estimated Gate Arrival changed from Mar-23-2026 2:50 PM to Mar-23-2026 2:26 PM
23 Mar
15:28
11:28
11:28
Time Adjustment
Estimated Runway Departure changed to Mar-23-2026 1:15 PM
23 Mar
11:45
07:45
07:45
Gate Adjustment
Departure Gate changed from A1 to A5A
23 Mar
11:38
07:38
07:38
Gate Adjustment
Departure Gate changed from 1 to A1
Tail Number changed from N14148 to N12135
23 Mar
11:21
07:21
07:21
Gate Adjustment
Departure Gate changed from A1 to 1
23 Mar
11:08
07:08
07:08
Gate Adjustment
Departure Gate changed from 24 to A1
23 Mar
11:05
07:05
07:05
Gate Adjustment
Departure Gate changed from C24 to 24
23 Mar
10:56
06:56
06:56
Gate Adjustment
Departure Gate changed from A6B to C24
23 Mar
10:02
06:02
06:02
Gate Adjustment
Arrival Gate changed to 11
23 Mar
05:50
01:50
01:50
Equipment Adjustment
Tail Number changed from N12136 to N14148
23 Mar
04:56
00:56
00:56
Gate Adjustment
Departure Gate changed from A6C to A6B
23 Mar
02:44
22:44
22:44
Gate Adjustment
Departure Gate changed from A2E to A6C
22 Mar
17:01
13:01
13:01
Time Adjustment
Scheduled Runway Departure changed from Mar-23-2026 1:17 PM to Mar-23-2026 1:15 PM
Scheduled Runway Arrival changed from Mar-23-2026 2:19 PM to Mar-23-2026 2:47 PM
22 Mar
16:56
12:56
12:56
Time Adjustment
Scheduled Runway Departure changed to Mar-23-2026 1:17 PM
Scheduled Runway Arrival changed to Mar-23-2026 2:19 PM
22 Mar
15:50
11:50
11:50
Gate Adjustment
Departure Gate changed to A2E
22 Mar
05:50
01:50
01:50
Equipment Adjustment
Tail Number changed from N16147 to N12136
21 Mar
05:50
01:50
01:50
Time Adjustment
Estimated Gate Departure changed to Mar-23-2026 12:55 PM
Estimated Gate Arrival changed to Mar-23-2026 2:50 PM
Tail Number changed to N16147
Actual Equipment changed to E45
20 Mar
18:47
14:47
14:47
Record Created
20 Mar
18:47
14:47
14:47
Time Adjustment
Scheduled Gate Departure changed to Mar-23-2026 12:55 PM
Scheduled Gate Arrival changed to Mar-23-2026 2:50 PM
Scheduled Equipment changed to ERJ