UA1236Denver to Phoenix
United Airlines flight UA1236 flies from Denver (DEN) to Phoenix Sky Harbor (PHX), 969 km. Over August 2025 to July 2026 it usually arrives about 12 minutes late: 73% of 436 flights arrived within 15 minutes of schedule and 0.9% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of UA1236, August 2025 to July 2026: 436 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as UA1236
- Denver (DEN) to Phoenix Sky Harbor (PHX)217 flights
- St. Louis (STL) to Denver (DEN)46 flights
- Santa Ana (SNA) to Denver (DEN)37 flights
- Phoenix Sky Harbor (PHX) to Denver (DEN)29 flights
- Salt Lake City (SLC) to Denver (DEN)29 flights
- New Orleans (MSY) to Denver (DEN)22 flights
- Sarasota Bradenton (SRQ) to Chicago O'Hare (ORD)21 flights
- New York (LGA) to Denver (DEN)17 flights
- Chicago O'Hare (ORD) to New York (LGA)8 flights
- Palm Springs (PSP) to Denver (DEN)3 flights
Other flights from Denver to Phoenix
More about Denver (DEN) and Phoenix Sky Harbor (PHX).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
<a href="https://tripstow.com/flights/ua1236" title="UA1236 is on time 73% of the time on TripStow"><img src="https://tripstow.com/badge/flights/ua1236.svg" alt="UA1236 is on time 73% of the time" width="360" height="88" loading="lazy"></a>
<a href="https://tripstow.com/flights/ua1236" title="UA1236 is on time 73% of the time on TripStow"><img src="https://tripstow.com/badge/flights/ua1236.svg?theme=light" alt="UA1236 is on time 73% of the time" width="360" height="88" loading="lazy"></a>[](https://tripstow.com/flights/ua1236)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free