United Airlines PHX to DEN on-time performance
United Airlines nonstop flights from Phoenix to Denver · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
0.6%
15 flights
Avg arrival delay
13 min
75 min when late
Rank on route
#2 of 6
route average 77% on time
Key facts
- United Airlines flights on PHX to DEN arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 6 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (41%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft41%
- Air traffic control & airport congestion34%
- Airline (crew, maintenance, cleaning, fueling)23%
- Extreme weather2%
- Security0%
Other airlines on PHX to DEN
- Southwest Airlines73% on time · 16 min avg delay
- Frontier Airlines80% on time · 19 min avg delay
- American Airlines75% on time · 19 min avg delay
- Envoy Air84% on time · 8 min avg delay
- SkyWest Airlines67% on time · 33 min avg delay
Full PHX to DEN comparison →
United Airlines on-time record across all routes →
2,363 United Airlines flights tracked on this route; 15 cancelled, 7 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.