Kona (KOA) to San Jose (SJC): On-Time Performance
Data through May 2026
Kona (KOA) to San Jose (SJC) is a thinner route than most in this dataset — 146 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 78% arrived on time.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.40
- last 12 months
- Duration
- 5h 8m
- scheduled
- Distance
- 2,384 mi
Monthly on-time trend
Best time to fly from KOA to SJC
Aim for departures around 1 p.m. (87% on-time); avoid 2 p.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 10 min |
| Tuesday | 76% | 19 min |
| Wednesday | 73% | 19 min |
| Thursdaybest | 87% | 6 min |
| Friday | 77% | 20 min |
| Saturday | 73% | 22 min |
| Sunday | 85% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft72%
- Airline operations20%
- National airspace system7%
- Weather1%
Frequently asked questions
- How often are flights from KOA to SJC delayed?
- 22% of KOA–SJC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 16 minutes.
- What is the best time of day to fly from KOA to SJC?
- Departures around 1 p.m. have the best record (87% on-time), while departures around 2 p.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from KOA to SJC?
- The scheduled KOA–SJC flight time averages 5h 8m over 2,384 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are KOA to SJC flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for KOA to SJC?
- Thursday flights have the best record at 87% on-time. Day-of-week differences on this route are meaningful — Wednesday trails at 73%.
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Based on 420 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.