San Jose to Long Beach

What the Data Says About SJC to LGB

The San Jose to Long Beach corridor (SJC → LGB) covers roughly 324 miles and is served by 2 carriers, based on Bureau of Transportation Statistics reporting. Across 6,786 flights in the dataset, this route posts a 87.8% on-time rate with an average delay of 54.5 minutes when flights run late. Over the most recent 24 months of BTS data, 2,570 flights were recorded on this pairing — 10 cancelled (0.4%) and 3 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 2 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 6,786 total flights analyzed, the 87.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 54.5-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, Mar 2025 posted the best performance on this corridor at 95% on-time, while Oct 2025 came in at 76% on-time — a 19-point gap between best and worst recent month. For travelers evaluating the SJC to LGB route, the combination of a 87.8% on-time rate, 54.5-minute average delay, 0.4% recent cancellation rate, and 2 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.