United Airlines
flight
UA 421:
Denver - Milwaukee
Denver - Milwaukee
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA421
Effective 2025-06-28 through 2025-08-16
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 3:57, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
United Airlines UA421
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
United Airlines UA421
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Airbus A319 (319)
Airbus A319 (319)
United Airlines UA421
Valid until 2025-05-20
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:22, non-stop
Airbus A319 (319)
Airbus A319 (319)
United Airlines UA421
Effective 2025-05-03 through 2025-05-17
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 2:22, non-stop
Airbus A320 (320)
Airbus A320 (320)
United Airlines UA421
Operates only on 2025-05-21
Mon
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Tue
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Wed
Thu
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Fri
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Sat
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Sun
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Duration: 2:22, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
United Airlines UA421
Effective 2025-05-22 through 2025-06-24
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
United Airlines UA421
Operates only on 2025-05-24
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 2:20, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
United Airlines UA421
Effective 2025-05-31 through 2025-06-21
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 2:20, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
United Airlines UA421
Operates only on 2025-06-25
Mon
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Tue
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Wed
Thu
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Fri
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Sat
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Sun
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Duration: 2:20, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
United Airlines UA421
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
-
-
Sat
-
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
United Airlines UA421
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:23, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
United Airlines UA421
Effective 2025-06-27 through 2025-08-15
Mon
-
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Tue
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Wed
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Thu
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Fri
Sat
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Sun
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Duration: 2:20, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here DEN-MKE
- UA 421 is a domestic flight departing from the Denver airport (DEN) and arriving at Milwaukee airport (MKE).
- The flight distance is 893 miles, or 1437 km.
- The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-6 . 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 2:20 and 3:57.