United Airlines IAH to PHX on-time performance
United Airlines nonstop flights from Houston to Phoenix · Aug 2025 – Jul 2026
On-time arrivals
81%
arrived < 15 min late
Cancelled
0.3%
5 flights
Avg arrival delay
12 min
61 min when late
Rank on route
#2 of 5
route average 79% on time
Key facts
- United Airlines flights on IAH to PHX arrived on time 81% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 7% arrived an hour or more late.
- That ranks #2 of 5 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was late-arriving aircraft (36%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft36%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion26%
- Extreme weather10%
- Security0%
Other airlines on IAH to PHX
- American Airlines81% on time · 31 min avg delay
- Frontier Airlines67% on time · 26 min avg delay
- SkyWest Airlines69% on time · 24 min avg delay
- Envoy Air89% on time · 10 min avg delay
Full IAH to PHX comparison →
United Airlines on-time record across all routes →
1,779 United Airlines flights tracked on this route; 5 cancelled, 4 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.