You are viewing the detailed flight route and schedule for flight UA 421 Denver — Milwaukee. All stops and landings along this route are displayed below.
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Flight UA 421 Denver — Milwaukee:
Schedule, Itinerary & Airline Details
Below is the detailed schedule for direct flight UA 421 Denver — Milwaukee in 2025. Click on an airport or route link to view more detailed flight information.
All times are displayed in local time.
Airline information
United Airlines
IATA code or "Siren":
UA /
ICAO code:
UAL
Website:
http://www.united.com/
Flight Timetable
UA 421 Denver — Milwaukee
Below is the timetable for flight UA 421 Denver — Milwaukee, operating on the following days: UA 421.
Please note: The flight schedule is subject to change. Always verify the latest information directly with the airport information service.
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