Monterey to San Diego

What the Data Says About MRY to SAN

The Monterey to San Diego corridor (MRY → SAN) covers roughly 375 miles and is served by 2 carriers, based on Bureau of Transportation Statistics reporting. Across 2,085 flights in the dataset, this route posts a 82.9% on-time rate with an average delay of 66.9 minutes when flights run late. Over the most recent 24 months of BTS data, 1,320 flights were recorded on this pairing — 24 cancelled (1.8%) and 4 diverted (0.3%). 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 2,085 total flights analyzed, the 82.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 66.9-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 2024 posted the best performance on this corridor at 89% on-time, while Dec 2024 came in at 59% on-time — a 29-point gap between best and worst recent month. For travelers evaluating the MRY to SAN route, the combination of a 82.9% on-time rate, 66.9-minute average delay, 1.8% recent cancellation rate, and 2 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.