Kona (KOA) to San Francisco (SFO): On-Time Performance
Data through May 2026
Kona (KOA) to San Francisco (SFO) effectively runs on two schedules. In September 2024, 98% of arrivals were on time; in October 2025 that fell to 71% — a 27-point seasonal swing. Across the full period the route averages 85% on-time against a national 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 2.8
- last 12 months
- Duration
- 5h 9m
- scheduled
- Distance
- 2,368 mi
Best airline from KOA to SFO
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 87% | 12 min | 1.1% | 1,494 |
| Alaska Airlines | 72% | 17 min | 0.5% | 203 |
Monthly on-time trend
Best time to fly from KOA to SFO
Aim for departures around 11 p.m. (98% on-time); avoid 4 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 88% | 5 min |
| Tuesday | 88% | 10 min |
| Wednesday | 87% | 16 min |
| Thursday | 82% | 28 min |
| Friday | 85% | 11 min |
| Saturday | 84% | 9 min |
| Sunday | 86% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations50%
- National airspace system13%
Frequently asked questions
- How often are flights from KOA to SFO delayed?
- 15% of KOA–SFO 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 13 minutes.
- Which airline is most reliable from KOA to SFO?
- United Airlines has the best on-time record on this route at 87%, based on 1,494 flights. 2 airlines flew KOA–SFO frequently enough to compare in this period.
- What is the best time of day to fly from KOA to SFO?
- Departures around 11 p.m. have the best record (98% on-time), while departures around 4 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from KOA to SFO?
- The scheduled KOA–SFO flight time averages 5h 9m over 2,368 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are KOA to SFO flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from KOA to SFO?
- October 2025 was the roughest month in this dataset, with only 71% of arrivals on time. The best was September 2024 at 98%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 1,697 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.