Historical on-time performance
Denver to Portland
991 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–PDX arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
Median delayon timetypical arrival
p90 delay50 min1 in 10 flights is worsetail risk
Cancelled0.6%of scheduled flights
based on 4,304 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time69%Medianon timep9050 minCancel0.9%Flights455
- United AirlinesbestOn-time78%Medianon timep9040 minCancel0.5%Flights1,869
- Frontier AirlinesOn-time73%Medianon timep9050 minCancel1.5%Flights335
- Southwest AirlinesOn-time64%Median5 minp9055 minCancel0.5%Flights1,645
Why flights run late
Delay causes
- Airline30%
- Weather2%
- Air traffic (NAS)13%
- Late aircraft54%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
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