SFO to KOA flight delays & on-time performance
Nonstop flights from San Francisco International Airport to Ellison Onizuka Kona International Airport at Keāhole · 2,368 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SFO or KOA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Francisco (SFO) to Kona (KOA) arrived on time 87% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.3% were cancelled, and 4% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (91% on time); United Airlines was the least (86%).
- Departures scheduled around 7am did best (92% on time); around 4pm did worst (82%).
- Monday was the most reliable day to fly (89% on time) and Wednesday the least (81%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
Which airline is most on time from SFO to KOA?
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 |
|---|---|---|---|---|---|
| Alaska Airlines | 91% | 0.0% | 6 min | 3.0% | 231 |
| United Airlines | 86% | 0.3% | 8 min | 3.9% | 920 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am92%250 flights
- 8am88%127 flights
- 9am86%239 flights
- 10am89%135 flights
- 11am83%48 flights
- 4pm82%229 flights
- 5pm92%24 flights
- 6pm67%27 flights
- 7pm90%72 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday89%0.0% cancelled
- Tuesday89%0.0% cancelled
- Wednesday81%0.0% cancelled
- Thursday88%0.0% cancelled
- Friday85%0.0% cancelled
- Saturday87%1.5% cancelled
- Sunday86%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)42%
- Late-arriving aircraft40%
- Air traffic control & airport congestion18%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SFO to KOA: common questions
- How often are SFO to KOA flights on time?
- 87% 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 San Francisco to Kona cancelled?
- 0.3% of scheduled flights were cancelled (3 of 1,151).
- How long are typical delays?
- Across all flights the average arrival delay was 8 min (early arrivals count as zero). Flights that were late arrived 51 min behind schedule on average, and 3.8% of flights were an hour or more late.
- How long is taxi time at SFO?
- Flights on this route spent 24 min taxiing from the gate to takeoff on average.
Related routes
Return trip: KOA to SFO — 84% on time
More flights from San Francisco
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SFO → KOA, nonstop flights by US airlines that report to the DOT. How we calculate this.