Historical on-time performance
Seattle to Kona
2,688 miData through Dec 2025Source: US DOT · BTS
Flights on SEA–KOA arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 1,412 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time82%Medianon timep9025 minCancel1.2%Flights337
- Alaska AirlinesOn-time71%Medianon timep9040 minCancel1.2%Flights1,075
Why flights run late
Delay causes
- Airline46%
- Weather2%
- Air traffic (NAS)23%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SEA → KOA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 73% to 81% on time.
- Mornings81% on time · p90 25 min · 934 flights
- Afternoons80% on time · p90 35 min · 723 flights
- Evenings75% on time · p90 35 min · 1,005 flights
- Middays73% on time · p90 40 min · 1,583 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 79% on time.
- Wednesdays79% on time · p90 30 min · 598 flights
- Fridays77% on time · p90 40 min · 612 flights
- Saturdays77% on time · p90 35 min · 619 flights
- Sundays77% on time · p90 35 min · 613 flights
- Tuesdays76% on time · p90 35 min · 601 flights
- Thursdays75% on time · p90 30 min · 611 flights
- Mondays75% on time · p90 35 min · 591 flights
Advertisement
Keep exploring