United Airlines PDX to IAH on-time performance
United Airlines nonstop flights from Portland to Houston · Aug 2025 – Jul 2026
On-time arrivals
86%
arrived < 15 min late
Cancelled
0.3%
3 flights
Avg arrival delay
11 min
75 min when late
Rank on route
#1 of 2
route average 85% on time
Key facts
- United Airlines flights on PDX to IAH arrived on time 86% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 85% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)37%
- Late-arriving aircraft37%
- Air traffic control & airport congestion26%
- Extreme weather0%
- Security0%
Other airlines on PDX to IAH
- Alaska Airlines84% on time · 8 min avg delay
Full PDX to IAH comparison →
United Airlines on-time record across all routes →
874 United Airlines flights tracked on this route; 3 cancelled, 1 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.