United Airlines
UA1637Phoenix to Denver
United Airlines flight UA1637 flies from Phoenix Sky Harbor (PHX) to Denver (DEN), 969 km. Over August 2025 to July 2026 it usually arrives about 9 minutes late: 78% of 313 flights arrived within 15 minutes of schedule and 1% were cancelled (US Department of Transportation data).
On-time record, last 12 months
78%
on time (within 15 min)
13%
more than 30 min late
1%
cancelled
+9 min
average arrival vs schedule
Every operation of UA1637, August 2025 to July 2026: 313 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as UA1637
Other flights from Phoenix to Denver
More about Phoenix Sky Harbor (PHX) and Denver (DEN).
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