UA1637 United Airlines - Flight Status

Which is the frequency of flight UA1637?
The flight UA1637 is scheduled to flight on Wednesday, Thursday, Friday, Sunday on a weekly basis.

Which is the distance of flight UA1637?
The distance between the two airports is 601 miles.

Which is the flight time of flight UA1637?
The scheduled flight time gate to gate is: 01:56 hours.
The real flight time gate to gate on average is: 01:19 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 Phoenix: 2026-05-03 02:37:15
Current Time in Denver: 2026-05-03 03:37:15

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

American Airlines
- Flight Number: AA1638. (On Time performance: 74 - Average Delay: 18 minutes)
- Flight Number: AA3144. (On Time performance: 89 - Average Delay: 15 minutes)
- Flight Number: AA3560. (On Time performance: 88 - Average Delay: 5 minutes)
- Flight Number: AA4112. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: AA4990.

Frontier Airlines
- Flight Number: F91376. (On Time performance: 89 - Average Delay: 30 minutes)
- Flight Number: F91748. (On Time performance: 82 - Average Delay: 12 minutes)
- Flight Number: F91820. (On Time performance: 78 - Average Delay: 17 minutes)
- Flight Number: F92142. (On Time performance: 82 - Average Delay: 26 minutes)
- Flight Number: F94766. (On Time performance: 88 - Average Delay: 8 minutes)
- Flight Number: F94768. (On Time performance: 80 - Average Delay: 13 minutes)

United Airlines
- Flight Number: UA1226. (On Time performance: 79 - Average Delay: 11 minutes)
- Flight Number: UA1885. (On Time performance: 93 - Average Delay: 4 minutes)
- Flight Number: UA1998. (On Time performance: 92 - Average Delay: 7 minutes)
- Flight Number: UA337. (On Time performance: 93 - Average Delay: 2 minutes)
- Flight Number: UA597. (On Time performance: 85 - Average Delay: 7 minutes)
- Flight Number: UA624. (On Time performance: 97 - Average Delay: 2 minutes)
- Flight Number: UA709. (On Time performance: 88 - Average Delay: 7 minutes)

Southwest Airlines
- Flight Number: WN1626. (On Time performance: 71 - Average Delay: 7 minutes)
- Flight Number: WN169. (On Time performance: 88 - Average Delay: 8 minutes)
- Flight Number: WN1991. (On Time performance: 80 - Average Delay: 8 minutes)
- Flight Number: WN2176. (On Time performance: 70 - Average Delay: 13 minutes)
- Flight Number: WN2550. (On Time performance: 87 - Average Delay: 5 minutes)
- Flight Number: WN2864. (On Time performance: 75 - Average Delay: 13 minutes)
- Flight Number: WN2938.
- Flight Number: WN3166. (On Time performance: 65 - Average Delay: 17 minutes)
- Flight Number: WN3471.
- Flight Number: WN3777. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: WN3779. (On Time performance: 91 - Average Delay: 5 minutes)
- Flight Number: WN3780. (On Time performance: 87 - Average Delay: 5 minutes)
- Flight Number: WN3782. (On Time performance: 78 - Average Delay: 6 minutes)
- Flight Number: WN3786. (On Time performance: 57 - Average Delay: 21 minutes)
- Flight Number: WN3788. (On Time performance: 76 - Average Delay: 9 minutes)
- Flight Number: WN3936. (On Time performance: 65 - Average Delay: 13 minutes)
- Flight Number: WN4016.
- Flight Number: WN4136. (On Time performance: 63 - Average Delay: 14 minutes)
- Flight Number: WN4613. (On Time performance: 100 - Average Delay: 2 minutes)
- Flight Number: WN4638. (On Time performance: 33 - Average Delay: 36 minutes)

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 December 02, 2025 to April 29, 2026. 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 May 02, 2025 to April 29, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.