Southwest Airlines DEN to PDX on-time performance
Southwest Airlines nonstop flights from Denver to Portland · Aug 2025 – Jul 2026
On-time arrivals
63%
arrived < 15 min late
Cancelled
0.1%
1 flights
Avg arrival delay
20 min
48 min when late
Rank on route
#4 of 5
route average 75% on time
Key facts
- Southwest Airlines flights on DEN to PDX arrived on time 63% of the time in Aug 2025 – Jul 2026.
- 0.1% were cancelled, and 9% arrived an hour or more late.
- That ranks #4 of 5 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (56%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft56%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion12%
- Extreme weather1%
- Security0%
Other airlines on DEN to PDX
- United Airlines83% on time · 11 min avg delay
- Alaska Airlines80% on time · 13 min avg delay
- Frontier Airlines84% on time · 10 min avg delay
- SkyWest Airlines46% on time · 24 min avg delay
Full DEN to PDX comparison →
Southwest Airlines on-time record across all routes →
1,555 Southwest Airlines flights tracked on this route; 1 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.