(DL) Delta Air Lines 1221 Flight Details
On time | Departed
Departure
MKE
Milwaukee Mitchell International Airport, WI, US
Flight Gate Times
28-Aug-2026
Scheduled
05:34
CDT
Actual
05:27
CDT
Total Departure Delay: -
Flight Runway Times
28-Aug-2026
Scheduled
05:45
CDT
Actual
05:35
CDT
Runway Delay: -
Terminal
-
Gate
D44
Craft Type
Boeing 737-900 Passenger (Scimitar Winglets)
7S9
Flight Time
Scheduled
2h
Arrival
ATL
Atlanta Hartsfield-Jackson International Airport, GA, US
Flight Gate Times
28-Aug-2026
Scheduled
08:34
EDT
Estimated
08:15
EDT
Total Arrival Delay: -
Flight Runway Times
28-Aug-2026
Scheduled
08:24
EDT
Estimated
08:05
EDT
Runway Delay: -
Terminal
S
Gate
T8
Baggage Claim
4
Tail Number
N943DZ
Flight Time
Estimated
1h 48m
Flight Notes
Also marketed as (AM) Aeromexico 4024, (KE) Korean Air 6964, (LA) LATAM Airlines 6386
Event Timeline
Date
Event
Data Updated
28 Aug
10:36
05:36
06:36
Time Adjustment
Estimated Runway Departure changed from Aug-28-2026 5:45 AM to Aug-28-2026 5:35 AM
Actual Runway Departure changed to Aug-28-2026 5:35 AM
28 Aug
10:27
05:27
06:27
Status Active
Estimated Gate Departure changed from Aug-28-2026 5:24 AM to Aug-28-2026 5:27 AM
Actual Gate Departure changed to Aug-28-2026 5:27 AM
Estimated Runway Arrival changed from Aug-28-2026 8:02 AM to Aug-28-2026 8:05 AM
Estimated Gate Arrival changed from Aug-28-2026 8:12 AM to Aug-28-2026 8:15 AM
Status changed from Scheduled to Active
28 Aug
10:11
05:11
06:11
Gate Adjustment
Baggage changed from 2 to 4
28 Aug
10:07
05:07
06:07
Time Adjustment
Estimated Gate Departure changed from Aug-28-2026 5:34 AM to Aug-28-2026 5:24 AM
Estimated Runway Arrival changed from Aug-28-2026 8:24 AM to Aug-28-2026 8:02 AM
Estimated Gate Arrival changed from Aug-28-2026 8:26 AM to Aug-28-2026 8:12 AM
28 Aug
09:56
04:56
05:56
Gate Adjustment
Arrival Gate changed from B5 to T8
28 Aug
09:09
04:09
05:09
Time Adjustment
Scheduled Runway Arrival changed from Aug-28-2026 8:17 AM to Aug-28-2026 8:24 AM
28 Aug
09:09
04:09
05:09
Time Adjustment
Estimated Runway Arrival changed from Aug-28-2026 8:17 AM to Aug-28-2026 8:24 AM
28 Aug
09:09
04:09
05:09
Time Adjustment
Estimated Gate Arrival changed from Aug-28-2026 8:25 AM to Aug-28-2026 8:26 AM
Arrival Gate changed from A16 to B5
28 Aug
08:14
03:14
04:14
Gate Adjustment
Arrival Gate changed from A19 to A16
28 Aug
08:04
03:04
04:04
Time Adjustment
Estimated Runway Departure changed to Aug-28-2026 5:45 AM
Estimated Gate Departure changed to Aug-28-2026 5:34 AM
Estimated Runway Arrival changed to Aug-28-2026 8:17 AM
28 Aug
03:00
22:00
23:00
Gate Adjustment
Baggage changed from 9 to 2
28 Aug
00:40
19:40
20:40
Equipment Adjustment
Tail Number changed from N864DN to N943DZ
27 Aug
10:41
05:41
06:41
Time Adjustment
Scheduled Runway Departure changed from Aug-28-2026 6:01 AM to Aug-28-2026 5:45 AM
Scheduled Runway Arrival changed from Aug-28-2026 8:44 AM to Aug-28-2026 8:17 AM
27 Aug
10:36
05:36
06:36
Time Adjustment
Scheduled Runway Departure changed to Aug-28-2026 6:01 AM
Scheduled Runway Arrival changed to Aug-28-2026 8:44 AM
27 Aug
00:28
19:28
20:28
Gate Adjustment
Baggage changed from 8 to 9
26 Aug
22:35
17:35
18:35
Time Adjustment
Estimated Gate Arrival changed to Aug-28-2026 8:25 AM
26 Aug
18:39
13:39
14:39
Gate Adjustment
Baggage changed to 8
26 Aug
11:06
06:06
07:06
Equipment Adjustment
Tail Number changed from N900DU to N864DN
26 Aug
09:05
04:05
05:05
Gate Adjustment
Departure Gate changed to D44
Arrival Gate changed to A19
Tail Number changed to N900DU
Actual Equipment changed to 7S9
25 Aug
18:19
13:19
14:19
Record Created
25 Aug
18:19
13:19
14:19
Time Adjustment
Scheduled Gate Departure changed to Aug-28-2026 5:34 AM
Scheduled Gate Arrival changed to Aug-28-2026 8:34 AM
Arrival Terminal changed to S
Scheduled Equipment changed to 739