Historical on-time performance
Kona to Portland
2,607 miData through May 2026Source: 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 307 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%Flights307
Why flights run late
Delay causes
- Airline15%
- Weather2%
- Air traffic (NAS)16%
- Late aircraft66%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 14 cancellations with a reported cause (BTS reports causes from June 2003).
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 (2023-06 .. 2026-05).
Best time of day
Afternoons are the most reliable time of day to fly this route — 80% on time.
- Afternoons80% on time · p90 30 min · 453 flights
- Middays74% on time · p90 40 min · 545 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.
- Tuesdays82% on time · p90 35 min · 147 flights · limited
- Wednesdays81% on time · p90 30 min · 139 flights · limited
- Fridays77% on time · p90 45 min · 142 flights · limited
- Saturdays76% on time · p90 25 min · 157 flights · limited
- Thursdays74% on time · p90 40 min · 149 flights · limited
- Mondays74% on time · p90 40 min · 141 flights · limited
- Sundays74% on time · p90 50 min · 147 flights · limited
Keep exploring