Route · SAN → STS · 2020–2025 BTS data
San Diego to Santa Rosa
The SAN–STS corridor (San Diego, CA → Santa Rosa, CA) runs ahead of the national average, served by 4 carriers across roughly 508 miles.
Data updated 2026-06-13
- 80.9%
- On-time
- +1.9 pts
- vs US avg
- 57 min
- Delay when late
- 3,245
- Flights
Cancelled
2.6%
Best Month
May 2025 84%
Worst Month
Nov 2024 53%
Distance
508 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 52 | 19 | 4 | 1 | OO |
| Nov 2025 | 87 | 21 | 9 | 1 | OO |
| Oct 2025 | 86 | 17 | 4 | 1 | OO |
| Sep 2025 | 81 | 16 | 3 | 0 | OO |
| Aug 2025 | 71 | 15 | 0 | 0 | OO |
| Jul 2025 | 61 | 13 | 0 | 0 | OO |
| Jun 2025 | 60 | 15 | 1 | 1 | OO |
| May 2025 | 62 | 10 | 0 | 0 | OO |
| Apr 2025 | 60 | 16 | 0 | 0 | OO |
| Mar 2025 | 54 | 14 | 0 | 2 | OO |
| Feb 2025 | 44 | 15 | 3 | 1 | OO |
| Jan 2025 | 53 | 12 | 5 | 1 | OO |
| Dec 2024 | 68 | 30 | 3 | 0 | OO |
| Nov 2024 | 79 | 37 | 2 | 0 | OO |
| Oct 2024 | 79 | 27 | 3 | 1 | OO |
| Sep 2024 | 60 | 16 | 0 | 0 | OO |
| Aug 2024 | 62 | 11 | 0 | 0 | OO |
| Jul 2024 | 62 | 15 | 0 | 0 | OO |
| Jun 2024 | 49 | 11 | 0 | 0 | OO |
| May 2024 | 46 | 4 | 1 | 1 | OO |
| Apr 2024 | 57 | 10 | 0 | 0 | OO |
| Mar 2024 | 54 | 11 | 0 | 0 | OO |
| Feb 2024 | 46 | 6 | 0 | 2 | OO |
| Jan 2024 | 51 | 9 | 0 | 0 | OO |
Cancellation Rate
2.6%
38 of 1,484 flights
Diversion Rate
0.8%
12 of 1,484 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Origin airport →STS - Santa Rosa
Full on-time, delay-cause, and seasonal performance for Santa Rosa, CA.
Destination airport →Compare the two airports
See SAN and STS side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SAN–STS.
Routes with a similar on-time rate
What the Data Says About SAN to STS
3,245 tracked flights put the SAN to STS pairing (San Diego to Santa Rosa) at a 80.9% on-time rate, squarely in line with the wider network. Delays that do occur run 57.4 minutes on average. Across the 508-mile route and its 4 carriers, the trailing 24 months show 2.6% cancelled and 0.8% diverted (1,484 flights sampled).
The monthly split is wide on this route: May 2025 posted the strongest performance at 84% on-time, while Nov 2024 came in at just 53% - a 31-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.