Kona to San Francisco

What the Data Says About KOA to SFO

The Kona to San Francisco corridor (KOA → SFO) covers roughly 2,367 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 5,090 flights in the dataset, this route posts a 89.1% on-time rate with an average delay of 101.6 minutes when flights run late. Over the most recent 24 months of BTS data, 1,556 flights were recorded on this pairing — 18 cancelled (1.2%) and 2 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,090 total flights analyzed, the 89.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 101.6-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Sep 2024 posted the best performance on this corridor at 98% on-time, while Oct 2025 came in at 72% on-time — a 27-point gap between best and worst recent month. For travelers evaluating the KOA to SFO route, the combination of a 89.1% on-time rate, 101.6-minute average delay, 1.2% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.