Route · SAN → SJC · 2020–2025 BTS data
San Diego to San Jose
The SAN–SJC corridor (San Diego, CA → San Jose, CA) runs ahead of the national average, served by 21 carriers across roughly 417 miles.
Data updated 2026-06-13
- 82%
- On-time
- +3 pts
- vs US avg
- 56 min
- Delay when late
- 31,496
- Flights
Cancelled
0.8%
Best Month
Jan 2025 86%
Worst Month
Oct 2024 68%
Distance
417 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 397 | 105 | 5 | 0 | WN,OO |
| Nov 2025 | 453 | 96 | 9 | 0 | OO,WN |
| Oct 2025 | 433 | 109 | 4 | 1 | OO,WN |
| Sep 2025 | 398 | 78 | 6 | 1 | WN,OO |
| Aug 2025 | 441 | 81 | 0 | 0 | OO,WN,NK |
| Jul 2025 | 471 | 103 | 3 | 0 | NK,OO,WN |
| Jun 2025 | 475 | 120 | 2 | 0 | OO,WN,NK |
| May 2025 | 483 | 113 | 2 | 0 | NK,OO,WN |
| Apr 2025 | 468 | 110 | 1 | 0 | NK,OO,WN,AS |
| Mar 2025 | 454 | 76 | 5 | 0 | AS,OO,WN,NK |
| Feb 2025 | 389 | 77 | 1 | 0 | AS,OO,WN,NK |
| Jan 2025 | 427 | 59 | 6 | 0 | OO,WN,NK |
| Dec 2024 | 471 | 141 | 19 | 0 | F9,NK,OO,WN |
| Nov 2024 | 475 | 90 | 3 | 0 | OO,NK,WN,AS,F9 |
| Oct 2024 | 530 | 169 | 5 | 0 | AS,OO,WN,NK,F9 |
| Sep 2024 | 514 | 114 | 2 | 0 | WN,NK,OO,F9 |
| Aug 2024 | 546 | 110 | 4 | 0 | F9,NK,WN,OO |
| Jul 2024 | 522 | 163 | 4 | 0 | F9,NK,OO,WN |
| Jun 2024 | 493 | 134 | 4 | 0 | NK,OO,WN |
| May 2024 | 457 | 86 | 0 | 0 | NK,OO,WN |
| Apr 2024 | 432 | 65 | 1 | 0 | NK,OO,WN |
| Mar 2024 | 435 | 79 | 3 | 0 | NK,OO,WN |
| Feb 2024 | 400 | 67 | 2 | 1 | NK,OO,WN |
| Jan 2024 | 432 | 61 | 2 | 0 | NK,WN,OO |
Cancellation Rate
0.8%
93 of 10,996 flights
Diversion Rate
0.0%
3 of 10,996 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 →SJC - San Jose
Full on-time, delay-cause, and seasonal performance for San Jose, CA.
Destination airport →Compare the two airports
See SAN and SJC 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–SJC.
Routes with a similar on-time rate
What the Data Says About SAN to SJC
Bureau of Transportation Statistics records show San Diego to San Jose (SAN to SJC) running a 82% on-time rate over 31,496 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 55.7 minutes. The 417-mile corridor is served by 21 carriers, and over the last 24 months 0.8% of 10,996 flights were cancelled, 0.0% diverted.
The monthly split is wide on this route: Jan 2025 posted the strongest performance at 86% on-time, while Oct 2024 came in at just 68% - a 18-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.