(UA) United Airlines 3997 Flight Details
On time | Arrived
Departure
ATL
Atlanta Hartsfield-Jackson International Airport, GA, US
Flight Gate Times
28-Dec-2025
Scheduled
11:21
EST
Actual
11:20
EST
Total Departure Delay: -
Flight Runway Times
28-Dec-2025
Scheduled
11:38
EST
Actual
11:33
EST
Runway Delay: -
Terminal
N
Gate
T21
Craft Type
Embraer 175
E75
Flight Time
Scheduled
2h 34m
Arrival
IAH
Houston George Bush Intercontinental Airport, TX, US
Flight Gate Times
28-Dec-2025
Scheduled
12:55
CST
Actual
12:28
CST
Total Arrival Delay: -
Flight Runway Times
28-Dec-2025
Scheduled
12:24
CST
Actual
12:21
CST
Runway Delay: -
Terminal
B
Gate
29
Baggage Claim
C7
Tail Number
N88301
Flight Time
Actual
2h 8m
Flight Notes
Operated by Mesa Airlines on behalf of United Airlines
Also marketed as (NZ) Air New Zealand 6331
Event Timeline
Date
Event
Data Updated
28 Dec
18:32
13:32
12:32
Time Adjustment
Estimated Gate Arrival changed from Dec-28-2025 12:27 PM to Dec-28-2025 12:28 PM
Actual Gate Arrival changed to Dec-28-2025 12:28 PM
28 Dec
18:22
13:22
12:22
Status Landed
Estimated Runway Arrival changed from Dec-28-2025 12:09 PM to Dec-28-2025 12:21 PM
Actual Runway Arrival changed to Dec-28-2025 12:21 PM
Status changed from Active to Landed
28 Dec
17:07
12:07
11:07
Gate Adjustment
Arrival Gate changed from 28 to 29
28 Dec
16:50
11:50
10:50
Time Adjustment
Estimated Gate Arrival changed from Dec-28-2025 12:18 PM to Dec-28-2025 12:27 PM
Arrival Gate changed from 7 to 28
28 Dec
16:37
11:37
10:37
Time Adjustment
Estimated Runway Arrival changed from Dec-28-2025 12:18 PM to Dec-28-2025 12:09 PM
Estimated Gate Arrival changed from Dec-28-2025 12:33 PM to Dec-28-2025 12:18 PM
28 Dec
16:35
11:35
10:35
Time Adjustment
Estimated Runway Arrival changed from Dec-28-2025 12:13 PM to Dec-28-2025 12:18 PM
28 Dec
16:34
11:34
10:34
Time Adjustment
Estimated Runway Arrival changed from Dec-28-2025 12:09 PM to Dec-28-2025 12:13 PM
28 Dec
16:34
11:34
10:34
Time Adjustment
Estimated Runway Arrival changed from Dec-28-2025 12:13 PM to Dec-28-2025 12:09 PM
28 Dec
16:34
11:34
10:34
Time Adjustment
Estimated Runway Departure changed from Dec-28-2025 11:38 AM to Dec-28-2025 11:33 AM
Actual Runway Departure changed to Dec-28-2025 11:33 AM
Estimated Runway Arrival changed from Dec-28-2025 12:24 PM to Dec-28-2025 12:13 PM
28 Dec
16:25
11:25
10:25
Time Adjustment
Estimated Gate Arrival changed from Dec-28-2025 12:55 PM to Dec-28-2025 12:33 PM
28 Dec
16:22
11:22
10:22
Status Active
Estimated Gate Departure changed from Dec-28-2025 11:21 AM to Dec-28-2025 11:20 AM
Actual Gate Departure changed to Dec-28-2025 11:20 AM
Status changed from Scheduled to Active
28 Dec
14:24
09:24
08:24
Time Adjustment
Scheduled Runway Arrival changed from Dec-28-2025 12:46 PM to Dec-28-2025 12:24 PM
28 Dec
14:24
09:24
08:24
Time Adjustment
Estimated Runway Departure changed to Dec-28-2025 11:38 AM
Estimated Runway Arrival changed to Dec-28-2025 12:24 PM
28 Dec
11:55
06:55
05:55
Gate Adjustment
Departure Gate changed from T20 to T21
27 Dec
19:01
14:01
13:01
Gate Adjustment
Arrival Gate changed to 7
Baggage changed to C7
27 Dec
16:31
11:31
10:31
Time Adjustment
Scheduled Runway Departure changed from Dec-28-2025 11:28 AM to Dec-28-2025 11:38 AM
Scheduled Runway Arrival changed from Dec-28-2025 12:08 PM to Dec-28-2025 12:46 PM
27 Dec
16:26
11:26
10:26
Time Adjustment
Scheduled Runway Departure changed to Dec-28-2025 11:28 AM
Scheduled Runway Arrival changed to Dec-28-2025 12:08 PM
27 Dec
03:56
22:56
21:56
Gate Adjustment
Departure Gate changed to T20
26 Dec
05:13
00:13
23:13
Time Adjustment
Estimated Gate Departure changed to Dec-28-2025 11:21 AM
Estimated Gate Arrival changed to Dec-28-2025 12:55 PM
Tail Number changed to N88301
Actual Equipment changed to E75
25 Dec
18:48
13:48
12:48
Record Created
25 Dec
18:48
13:48
12:48
Time Adjustment
Scheduled Gate Departure changed to Dec-28-2025 11:21 AM
Scheduled Gate Arrival changed to Dec-28-2025 12:55 PM
Departure Terminal changed to N
Arrival Terminal changed to B
Scheduled Equipment changed to E7W