KOA to SFO flight delays & on-time performance
Nonstop flights from Ellison Onizuka Kona International Airport at Keāhole to San Francisco International Airport · 2,368 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at KOA or SFO right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Kona (KOA) to San Francisco (SFO) arrived on time 84% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 4% arrived an hour or more late.
- United Airlines was the most punctual airline here (87% on time); Alaska Airlines was the least (70%).
- Departures scheduled around 7am did best (100% on time); around 1pm did worst (77%).
- Tuesday was the most reliable day to fly (86% on time) and Thursday the least (79%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from KOA to SFO?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 87% | 1.1% | 9 min | 2.8% | 919 |
| Alaska Airlines | 70% | 0.4% | 19 min | 11.3% | 231 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am100%72 flights
- 11am82%72 flights
- 12pm83%73 flights
- 1pm77%211 flights
- 2pm81%179 flights
- 3pm79%169 flights
- 4pm62%34 flights
- 5pm80%41 flights
- 10pm92%207 flights
- 11pm98%88 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%0.7% cancelled
- Tuesday86%0.6% cancelled
- Wednesday85%0.0% cancelled
- Thursday79%0.6% cancelled
- Friday85%0.0% cancelled
- Saturday83%3.5% cancelled
- Sunday85%0.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion17%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)55%
- Extreme weather27%
- Air traffic control & airport congestion18%
- Security0%
KOA to SFO: common questions
- How often are KOA to SFO flights on time?
- 84% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Kona to San Francisco cancelled?
- 1.0% of scheduled flights were cancelled (11 of 1,150).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 66 min behind schedule on average, and 4.5% of flights were an hour or more late.
- How long is taxi time at KOA?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SFO to KOA — 87% on time
More flights from Kona
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: KOA → SFO, nonstop flights by US airlines that report to the DOT. How we calculate this.