Historical on-time performance
Seattle to Honolulu
2,677 miData through May 2026Source: US DOT · BTS
Flights on SEA–HNL arrive on time 64% of the time over the last 12 months.
On-time rate64%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 2,941 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time77%Medianon timep9030 minCancel0.9%Flights789
- Alaska AirlinesOn-time61%Medianon timep9055 minCancel0.8%Flights1,305
- Hawaiian AirlinesOn-time56%Median10 minp9075 minCancel1.3%Flights847
Why flights run late
Delay causes
- Airline73%
- Weather1%
- Air traffic (NAS)10%
- Late aircraft15%
- Security1%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline86%
- Weather14%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 29 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 SEA → HNL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 60% to 75% on time.
- Mornings75% on time · p90 35 min · 3,047 flights
- Afternoons74% on time · p90 35 min · 2,059 flights
- Evenings70% on time · p90 45 min · 1,503 flights
- Overnights67% on time · p90 55 min · 529 flights
- Middays60% on time · p90 50 min · 1,690 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 73% on time.
- Wednesdays73% on time · p90 35 min · 1,232 flights
- Saturdays71% on time · p90 45 min · 1,285 flights
- Tuesdays71% on time · p90 40 min · 1,233 flights
- Sundays71% on time · p90 45 min · 1,280 flights
- Mondays71% on time · p90 40 min · 1,244 flights
- Thursdays71% on time · p90 40 min · 1,274 flights
- Fridays66% on time · p90 50 min · 1,280 flights
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