Kona to San Jose

What the Data Says About KOA to SJC

The Kona to San Jose corridor (KOA → SJC) covers roughly 2,384 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 2,126 flights in the dataset, this route posts a 82.9% on-time rate with an average delay of 66.7 minutes when flights run late. Over the most recent 24 months of BTS data, 1,222 flights were recorded on this pairing — 7 cancelled (0.6%) and 5 diverted (0.4%). 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 2,126 total flights analyzed, the 82.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 66.7-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 2023 posted the best performance on this corridor at 97% on-time, while Dec 2022 came in at 63% on-time — a 34-point gap between best and worst recent month. For travelers evaluating the KOA to SJC route, the combination of a 82.9% on-time rate, 66.7-minute average delay, 0.6% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.