United Airlines PDX to DEN on-time performance
United Airlines nonstop flights from Portland to Denver · Aug 2025 – Jul 2026
On-time arrivals
91%
arrived < 15 min late
Cancelled
0.5%
10 flights
Avg arrival delay
7 min
73 min when late
Rank on route
#1 of 5
route average 83% on time
Key facts
- United Airlines flights on PDX to DEN arrived on time 91% of the time in Aug 2025 – Jul 2026.
- 0.5% were cancelled, and 3% arrived an hour or more late.
- That ranks #1 of 5 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was late-arriving aircraft (40%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft40%
- Air traffic control & airport congestion30%
- Airline (crew, maintenance, cleaning, fueling)30%
- Extreme weather0%
- Security0%
Other airlines on PDX to DEN
- Southwest Airlines74% on time · 14 min avg delay
- Alaska Airlines80% on time · 12 min avg delay
- Frontier Airlines80% on time · 13 min avg delay
- SkyWest Airlines69% on time · 15 min avg delay
Full PDX to DEN comparison →
United Airlines on-time record across all routes →
1,824 United Airlines flights tracked on this route; 10 cancelled, 9 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.