(UA) United Airlines 4308 Flight Details
On time | Scheduled
Departure
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
19-Feb-2026
Scheduled
13:20
EST
Estimated
13:20
EST
Total Departure Delay: -
Flight Runway Times
19-Feb-2026
Scheduled
13:37
EST
Actual
--
Runway Delay: -
Terminal
-
Gate
A4C
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 55m
Arrival
TYS
Knoxville McGhee Tyson Airport, TN, US
Flight Gate Times
19-Feb-2026
Scheduled
15:15
EST
Estimated
15:15
EST
Total Arrival Delay: -
Flight Runway Times
19-Feb-2026
Scheduled
15:12
EST
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
N12135
Flight Time
Estimated
1h 55m
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
18 Feb
22:45
17:45
17:45
Gate Adjustment
Departure Gate changed from A1C to A4C
18 Feb
22:30
17:30
17:30
Gate Adjustment
Departure Gate changed from A4C to A1C
18 Feb
22:28
17:28
17:28
Gate Adjustment
Departure Gate changed from A6B to A4C
18 Feb
22:28
17:28
17:28
Gate Adjustment
Departure Gate changed from A4C to A4B
18 Feb
22:28
17:28
17:28
Gate Adjustment
Departure Gate changed from A4B to A4C
18 Feb
22:23
17:23
17:23
Gate Adjustment
Departure Gate changed from A1C to A6B
18 Feb
22:16
17:16
17:16
Gate Adjustment
Departure Gate changed from A4C to A1C
18 Feb
22:16
17:16
17:16
Gate Adjustment
Departure Gate changed from A1C to A4C
18 Feb
22:10
17:10
17:10
Gate Adjustment
Departure Gate changed from 1 to A1C
18 Feb
19:51
14:51
14:51
Gate Adjustment
Departure Gate changed from A1 to 1
18 Feb
19:34
14:34
14:34
Gate Adjustment
Departure Gate changed from 5 to A1
18 Feb
18:48
13:48
13:48
Gate Adjustment
Departure Gate changed from A5 to 5
18 Feb
18:40
13:40
13:40
Gate Adjustment
Departure Gate changed from A5A to A5
18 Feb
18:26
13:26
13:26
Time Adjustment
Scheduled Runway Departure changed from Feb-19-2026 1:41 PM to Feb-19-2026 1:37 PM
Scheduled Runway Arrival changed from Feb-19-2026 2:48 PM to Feb-19-2026 3:12 PM
18 Feb
18:21
13:21
13:21
Time Adjustment
Scheduled Runway Departure changed to Feb-19-2026 1:41 PM
Scheduled Runway Arrival changed to Feb-19-2026 2:48 PM
18 Feb
07:50
02:50
02:50
Gate Adjustment
Departure Gate changed to A5A
18 Feb
06:51
01:51
01:51
Equipment Adjustment
Tail Number changed from N17196 to N12135
17 Feb
06:51
01:51
01:51
Time Adjustment
Estimated Gate Departure changed to Feb-19-2026 1:20 PM
Estimated Gate Arrival changed to Feb-19-2026 3:15 PM
Tail Number changed to N17196
Actual Equipment changed to E45
16 Feb
18:48
13:48
13:48
Record Created
16 Feb
18:48
13:48
13:48
Time Adjustment
Scheduled Gate Departure changed to Feb-19-2026 1:20 PM
Scheduled Gate Arrival changed to Feb-19-2026 3:15 PM
Scheduled Equipment changed to ERJ