United Airlines PHX to IAH on-time performance
United Airlines nonstop flights from Phoenix to Houston · Aug 2025 – Jul 2026
On-time arrivals
85%
arrived < 15 min late
Cancelled
0.4%
7 flights
Avg arrival delay
13 min
78 min when late
Rank on route
#1 of 5
route average 81% on time
Key facts
- United Airlines flights on PHX to IAH arrived on time 85% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 5 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was late-arriving aircraft (39%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft39%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion26%
- Extreme weather2%
- Security0%
Other airlines on PHX to IAH
- American Airlines75% on time · 19 min avg delay
- Frontier Airlines79% on time · 14 min avg delay
- SkyWest Airlines72% on time · 24 min avg delay
- Envoy Air82% on time · 7 min avg delay
Full PHX to IAH comparison →
United Airlines on-time record across all routes →
1,775 United Airlines flights tracked on this route; 7 cancelled, 10 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.