UA421 United Airlines - Flight Status

Which is the frequency of flight UA421?
The flight UA421 is scheduled to flight on daily basis.

Which is the distance of flight UA421?
The distance between the two airports is 894 miles.

Which is the flight time of flight UA421?
The scheduled flight time gate to gate is: 02:20 hours.
The real flight time gate to gate on average is: 02:31 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Denver: 2025-07-15 12:43:50
Current Time in Milwaukee: 2025-07-15 13:43:50

The following airlines serves the same route between Denver and Milwaukee:

Frontier Airlines
- Flight Number: F91608. (On Time performance: 67 - Average Delay: 29 minutes)

United Airlines
- Flight Number: UA1836. (On Time performance: 81 - Average Delay: 11 minutes)
- Flight Number: UA4806. (On Time performance: 48 - Average Delay: 44 minutes)
- Flight Number: UA5385. (On Time performance: 80 - Average Delay: 8 minutes)

Southwest Airlines
- Flight Number: WN1368. (On Time performance: 27 - Average Delay: 67 minutes)
- Flight Number: WN2305. (On Time performance: 30 - Average Delay: 61 minutes)
- Flight Number: WN2625. (On Time performance: 59 - Average Delay: 37 minutes)
- Flight Number: WN2630. (On Time performance: 53 - Average Delay: 46 minutes)
- Flight Number: WN2676. (On Time performance: 59 - Average Delay: 37 minutes)
- Flight Number: WN3057. (On Time performance: 76 - Average Delay: 12 minutes)
- Flight Number: WN3248.

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from May 01, 2025 to July 13, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from July 02, 2024 to June 30, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.