Route · SFO → SAN · 2020–2025 BTS data
San Francisco to San Diego
The SFO–SAN corridor (San Francisco, CA → San Diego, CA) runs ahead of the national average, served by 26 carriers across roughly 447 miles.
Data updated 2026-06-13
- 80.3%
- On-time
- +1.3 pts
- vs US avg
- 61 min
- Delay when late
- 34,477
- Flights
Cancelled
1.2%
Best Month
Jan 2025 84%
Worst Month
Dec 2025 62%
Distance
447 mi
Carriers
26
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 486 | 186 | 3 | 3 | WN,F9,AS,UA,OO |
| Nov 2025 | 564 | 200 | 19 | 1 | OO,UA,F9,AS,WN |
| Oct 2025 | 659 | 227 | 7 | 2 | AS,OO,UA,WN,F9 |
| Sep 2025 | 582 | 147 | 8 | 3 | UA,WN,OO,F9,AS |
| Aug 2025 | 593 | 187 | 1 | 0 | OO,WN,F9,UA,AS |
| Jul 2025 | 582 | 188 | 3 | 0 | AS,OO,UA,WN,F9 |
| Jun 2025 | 578 | 156 | 2 | 0 | AS,OO,UA,WN,F9 |
| May 2025 | 597 | 129 | 3 | 0 | AS,OO,UA,WN,F9 |
| Apr 2025 | 527 | 113 | 1 | 0 | F9,OO,UA,WN,AS |
| Mar 2025 | 539 | 124 | 2 | 2 | AS,OO,UA,WN,F9 |
| Feb 2025 | 453 | 96 | 7 | 0 | AS,OO,UA,WN,F9 |
| Jan 2025 | 523 | 86 | 4 | 3 | AS,OO,UA,WN,F9 |
| Dec 2024 | 595 | 182 | 15 | 9 | AS,F9,OO,UA,WN |
| Nov 2024 | 585 | 166 | 3 | 1 | OO,UA,WN,AS,F9 |
| Oct 2024 | 578 | 190 | 7 | 6 | UA,AS,OO,WN,F9 |
| Sep 2024 | 574 | 159 | 2 | 0 | WN,OO,UA,AS,F9 |
| Aug 2024 | 568 | 146 | 2 | 1 | AS,F9,WN,OO,UA |
| Jul 2024 | 539 | 156 | 11 | 1 | AS,F9,OO,UA,WN |
| Jun 2024 | 429 | 119 | 2 | 0 | AS,F9,OO,UA,WN |
| May 2024 | 522 | 147 | 5 | 0 | AS,F9,OO,UA,WN |
| Apr 2024 | 548 | 186 | 11 | 0 | AS,F9,OO,UA,WN |
| Mar 2024 | 509 | 176 | 1 | 1 | AS,OO,UA,WN |
| Feb 2024 | 439 | 149 | 7 | 0 | OO,UA,WN |
| Jan 2024 | 459 | 91 | 31 | 0 | WN,OO,UA |
Cancellation Rate
1.2%
157 of 13,028 flights
Diversion Rate
0.3%
33 of 13,028 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, 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 SFO 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 SFO–SAN.
Routes with a similar on-time rate
What the Data Says About SFO to SAN
34,477 tracked flights put the SFO to SAN pairing (San Francisco to San Diego) at a 80.3% on-time rate, squarely in line with the wider network. Delays that do occur run 60.7 minutes on average. Across the 447-mile route and its 26 carriers, the trailing 24 months show 1.2% cancelled and 0.3% diverted (13,028 flights sampled).
The monthly split is wide on this route: Jan 2025 posted the strongest performance at 84% on-time, while Dec 2025 came in at just 62% - a 22-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SFO to SAN? ▼
What is the cancellation rate for SFO to SAN? ▼
How far is the flight from SFO to SAN? ▼
When is the best time to fly from SFO to SAN? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.