San Jose to Los Angeles

What the Data Says About SJC to LAX

The San Jose to Los Angeles corridor (SJC → LAX) covers roughly 308 miles and is served by 21 carriers, based on Bureau of Transportation Statistics reporting. Across 30,152 flights in the dataset, this route posts a 88.4% on-time rate with an average delay of 63.3 minutes when flights run late. Over the most recent 24 months of BTS data, 10,649 flights were recorded on this pairing — 28 cancelled (0.3%) and 5 diverted (0.0%). Those baseline metrics tell you what to expect before you book.

Having 21 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 30,152 total flights analyzed, the 88.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 63.3-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, Apr 2025 posted the best performance on this corridor at 91% on-time, while Jul 2024 came in at 78% on-time — a 14-point gap between best and worst recent month. For travelers evaluating the SJC to LAX route, the combination of a 88.4% on-time rate, 63.3-minute average delay, 0.3% recent cancellation rate, and 21 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.