Route · MRY → SAN · 2020–2025 BTS data
Monterey to San Diego
The MRY–SAN corridor (Monterey, CA → San Diego, CA) runs ahead of the national average, served by 2 carriers across roughly 375 miles.
Data updated 2026-06-13
- 82.9%
- On-time
- +3.9 pts
- vs US avg
- 67 min
- Delay when late
- 2,085
- Flights
Cancelled
1.8%
Best Month
May 2024 89%
Worst Month
Dec 2024 59%
Distance
375 mi
Carriers
2
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 36 | 9 | 1 | 0 | OO |
| Nov 2025 | 59 | 16 | 1 | 0 | OO |
| Oct 2025 | 62 | 12 | 2 | 0 | OO |
| Sep 2025 | 60 | 11 | 2 | 0 | OO |
| Aug 2025 | 62 | 17 | 0 | 0 | OO |
| Jul 2025 | 61 | 10 | 3 | 1 | OO |
| Jun 2025 | 60 | 9 | 2 | 0 | OO |
| May 2025 | 62 | 9 | 1 | 0 | OO |
| Apr 2025 | 60 | 13 | 1 | 0 | OO |
| Mar 2025 | 62 | 10 | 3 | 0 | OO |
| Feb 2025 | 56 | 12 | 1 | 0 | OO |
| Jan 2025 | 61 | 11 | 1 | 0 | OO |
| Dec 2024 | 54 | 22 | 2 | 1 | OO |
| Nov 2024 | 59 | 12 | 0 | 1 | OO |
| Oct 2024 | 55 | 19 | 1 | 0 | OO |
| Sep 2024 | 60 | 10 | 2 | 0 | OO |
| Aug 2024 | 62 | 12 | 0 | 1 | OO |
| Jul 2024 | 61 | 19 | 1 | 0 | OO |
| Jun 2024 | 60 | 7 | 0 | 0 | OO |
| May 2024 | 62 | 7 | 0 | 0 | OO |
| Apr 2024 | 44 | 7 | 0 | 0 | OO |
| Dec 2023 | 31 | 2 | 0 | 0 | OO |
| Nov 2023 | 40 | 5 | 0 | 0 | OO |
| Oct 2023 | 31 | 3 | 0 | 0 | OO |
Cancellation Rate
1.8%
24 of 1,320 flights
Diversion Rate
0.3%
4 of 1,320 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MRY - Monterey
Full on-time, delay-cause, and seasonal performance for Monterey, CA.
Origin airport →SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Destination airport →Compare the two airports
See MRY and SAN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MRY–SAN.
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What the Data Says About MRY to SAN
Bureau of Transportation Statistics records show Monterey to San Diego (MRY to SAN) running a 82.9% on-time rate over 2,085 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 66.9 minutes. The 375-mile corridor is served by 2 carriers, and over the last 24 months 1.8% of 1,320 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: May 2024 posted the strongest performance at 89% on-time, while Dec 2024 came in at just 59% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.