Route Reliability
San Diego → San Jose
SAN–SJC · 417 miles · San Diego International Airport to San José Mineta International Airport
- 79%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 1.0%
- Cancelled
- 5,477
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines82%1,686 flights
- 2.Southwest Airlines78%3,748 flights
Not enough history to rank: Spirit Airlines (43 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
SAN–SJC flights departing between 6–9 AM arrived on time 94% of the time, versus 70% between 9 PM–12 AM.
Friday is doing you no favors.
SAN–SJC flights arrived on time 88% of the time on Wednesdays and just 73% on Fridays. That gap is worth planning around.
Alaska Airlines has a slight edge here.
Alaska Airlines arrived on time 82% of the time on this route; Southwest Airlines managed 78%.
Slipping a little lately.
SAN–SJC flights arrived on time 78% of the time over the last three months in the data, compared with 82% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon77%(862 flights)
- Tue87%(719 flights)
- Wed88%(707 flights)
- Thu75%(846 flights)
- Fri73%(853 flights)
- Sat87%(587 flights)
- Sun73%(847 flights)
- 6–9 AM94%(986 flights)
- 9 AM–12 PM86%(967 flights)
- 12–3 PM74%(1048 flights)
- 3–6 PM72%(1141 flights)
- 6–9 PM74%(1050 flights)
- 9 PM–12 AM70%(229 flights)
Jun 76% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 473 |
| July 2025 | 79% | 468 |
| August 2025 | 82% | 452 |
| September 2025 | 81% | 418 |
| October 2025 | 76% | 446 |
| November 2025 | 80% | 464 |
| December 2025 | 74% | 457 |
| January 2026 | 85% | 397 |
| February 2026 | 86% | 405 |
| March 2026 | 82% | 476 |
| April 2026 | 79% | 477 |
| May 2026 | 73% | 488 |
Same trip, other airports
Keep nerding
Based on 5,477 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.