Denver (DEN) to Portland (PWM): On-Time Performance
Data through May 2026
Denver (DEN) to Portland (PWM) is a thinner route than most in this dataset — 220 departures over the past year, roughly 4 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 84% arrived on time, comfortably above the national average of 78%.
- On-time
- 84%
- arrived <15 min late
- Avg delay
- 8 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.60
- last 12 months
- Duration
- 3h 54m
- scheduled
- Distance
- 1,782 mi
Monthly on-time trend
Best time to fly from DEN to PWM
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 91% | 4 min |
| Tuesday | 87% | 7 min |
| Wednesday | 87% | 7 min |
| Thursday | 83% | 6 min |
| Fridaybest | 91% | 11 min |
| Saturday | 79% | 10 min |
| Sunday | 74% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft39%
- Airline operations25%
- National airspace system36%
Frequently asked questions
- How often are flights from DEN to PWM delayed?
- 16% of DEN–PWM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 8 minutes.
- How long is the flight from DEN to PWM?
- The scheduled DEN–PWM flight time averages 3h 54m over 1,782 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are DEN to PWM flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to PWM?
- July 2025 was the roughest month in this dataset, with only 71% of arrivals on time. The best was October 2025 at 97%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 378 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.