Delta Air Lines flight DL 1221: Milwaukee - Atlanta

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 05:35 Milwaukee (MKE) 08:39 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:04 Effective 2025-06-08 through 2025-06-29
Mon,Tue 05:35 Milwaukee (MKE) 08:40 Atlanta (ATL) S
DL 1221 Non-stop Airbus A321 (321) 2:05 Effective 2025-06-30 through 2025-07-01
Wed-Sun 05:35 Milwaukee (MKE) 08:39 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:04 Effective 2025-07-02 through 2025-07-06
Mon-Fri,Sun 05:40 Milwaukee (MKE) 08:45 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:05 Effective 2025-05-07 through 2025-06-06
Sat 05:40 Milwaukee (MKE) 08:45 Atlanta (ATL) S
DL 1221 Non-stop Airbus A319 (319) 2:05 Effective 2025-05-10 through 2025-06-07
Daily 05:45 Milwaukee (MKE) 08:52 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:07 Valid until 2025-05-06
Daily 05:45 Milwaukee (MKE) 08:55 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:10 Effective 2025-12-20 through 2026-01-05
Daily 06:00 Milwaukee (MKE) 09:05 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:05 Effective 2025-07-07 through 2025-09-07
Daily 06:00 Milwaukee (MKE) 09:08 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:08 Effective 2025-09-08 through 2025-12-19
Daily 06:00 Milwaukee (MKE) 09:20 Atlanta (ATL) S
DL 1221 Non-stop Boeing 737-900 (739) 2:20 Effective from 2026-01-06
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Parallax here MKE-ATL


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Delta Air Lines flight DL 1221:
Milwaukee - Atlanta
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL1221
05:35
Milwaukee (MKE)

08:39
Atlanta (ATL) S
Effective 2025-06-08 through 2025-06-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
05:35
Milwaukee (MKE)

08:40
Atlanta (ATL) S
Effective 2025-06-30 through 2025-07-01
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Airbus A321 (321)
Delta Air Lines DL1221
05:35
Milwaukee (MKE)

08:39
Atlanta (ATL) S
Effective 2025-07-02 through 2025-07-06
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 2:04, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
05:40
Milwaukee (MKE)

08:45
Atlanta (ATL) S
Effective 2025-05-07 through 2025-06-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
05:40
Milwaukee (MKE)

08:45
Atlanta (ATL) S
Effective 2025-05-10 through 2025-06-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Airbus A319 (319)
Delta Air Lines DL1221
05:45
Milwaukee (MKE)

08:52
Atlanta (ATL) S
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:07, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
05:45
Milwaukee (MKE)

08:55
Atlanta (ATL) S
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
06:00
Milwaukee (MKE)

09:05
Atlanta (ATL) S
Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:05, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
06:00
Milwaukee (MKE)

09:08
Atlanta (ATL) S
Effective 2025-09-08 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Boeing 737-900 (739)
Delta Air Lines DL1221
06:00
Milwaukee (MKE)

09:20
Atlanta (ATL) S
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737-900 (739)
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Parallax here MKE-ATL
  • DL 1221 is a domestic flight departing from the Milwaukee airport (MKE) and arriving at Atlanta airport (ATL).
  • The flight distance is 670 miles, or 1078 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 2:04 and 2:20.
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