San Jose to Kona

What the Data Says About SJC to KOA

The San Jose to Kona corridor (SJC → KOA) covers roughly 2,384 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 2,125 flights in the dataset, this route posts a 87% on-time rate with an average delay of 59.6 minutes when flights run late. Over the most recent 24 months of BTS data, 1,221 flights were recorded on this pairing — 2 cancelled (0.2%) and 2 diverted (0.2%). 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 2,125 total flights analyzed, the 87% on-time figure is statistically meaningful rather than a small-sample fluke. The 59.6-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, May 2023 posted the best performance on this corridor at 95% on-time, while Dec 2022 came in at 71% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the SJC to KOA route, the combination of a 87% on-time rate, 59.6-minute average delay, 0.2% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.