Historical on-time performance
Portland to Kona
2,607 miData through Dec 2025Source: US DOT · BTS
Flights on PDX–KOA arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 246 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time83%Medianon timep9025 minCancel0.0%Flights246
Why flights run late
Delay causes
- Airline23%
- Weather1%
- Air traffic (NAS)49%
- Late aircraft27%
- 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 PDX → KOA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 85% on time.
- Mornings85% on time · p90 20 min · 813 flights
- Middays77% on time · p90 30 min · 207 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.
- Wednesdays86% on time · p90 25 min · 139 flights · limited
- Sundays86% on time · p90 20 min · 148 flights · limited
- Mondays84% on time · p90 20 min · 141 flights · limited
- Fridays83% on time · p90 25 min · 140 flights · limited
- Tuesdays82% on time · p90 20 min · 148 flights · limited
- Saturdays82% on time · p90 20 min · 156 flights · limited
- Thursdays80% on time · p90 25 min · 148 flights · limited
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