Historical on-time performance
Denver to Portland
1,782 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–PWM arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 191 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time83%Medianon timep9020 minCancel0.0%Flights191
Why flights run late
Delay causes
- Airline22%
- Weather0%
- Air traffic (NAS)43%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DEN → PWM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 89% on time.
- Mondays89% on time · p90 15 min · 64 flights · limited
- Fridays86% on time · p90 25 min · 65 flights · limited
- Thursdays86% on time · p90 15 min · 64 flights · limited
- Wednesdays85% on time · p90 15 min · 62 flights · limited
- Tuesdays84% on time · p90 20 min · 62 flights · limited
- Saturdays79% on time · p90 25 min · 73 flights · limited
- Sundays70% on time · p90 35 min · 64 flights · limited
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