Historical on-time performance
Kona to Portland
2,607 miData through Dec 2025Source: US DOT · BTS
Flights on KOA–PDX arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay35 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-time74%Medianon timep9035 minCancel0.0%Flights246
Why flights run late
Delay causes
- Airline14%
- Weather1%
- Air traffic (NAS)16%
- Late aircraft68%
- Security1%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly KOA → PDX
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Afternoons are the most reliable time of day to fly this route — 79% on time.
- Afternoons79% on time · p90 30 min · 549 flights
- Middays72% on time · p90 45 min · 422 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.
- Tuesdays80% on time · p90 40 min · 148 flights · limited
- Wednesdays80% on time · p90 30 min · 139 flights · limited
- Fridays75% on time · p90 45 min · 140 flights · limited
- Mondays74% on time · p90 40 min · 141 flights · limited
- Saturdays74% on time · p90 35 min · 156 flights · limited
- Sundays72% on time · p90 50 min · 147 flights · limited
- Thursdays72% on time · p90 45 min · 148 flights · limited
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