Route Reliability
San Jose → San Diego
SJC–SAN · 417 miles · San José Mineta International Airport to San Diego International Airport
- 75%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.1%
- Cancelled
- 5,489
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines78%1,700 flights
- 2.Southwest Airlines74%3,746 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.
SJC–SAN flights departing between 6–9 AM arrived on time 90% of the time, versus 61% between 6–9 PM.
Friday is doing you no favors.
SJC–SAN flights arrived on time 86% of the time on Tuesdays and just 63% on Fridays. That gap is worth planning around.
Alaska Airlines has a slight edge here.
Alaska Airlines arrived on time 78% of the time on this route; Southwest Airlines managed 74%.
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
- Mon75%(865 flights)
- Tue86%(713 flights)
- Wed81%(704 flights)
- Thu70%(849 flights)
- Fri63%(853 flights)
- Sat86%(586 flights)
- Sun70%(848 flights)
- 6–9 AM90%(1137 flights)
- 9 AM–12 PM77%(1108 flights)
- 12–3 PM75%(1066 flights)
- 3–6 PM69%(998 flights)
- 6–9 PM61%(972 flights)
- 9 PM–12 AM75%(137 flights)
Jun 75% → May 68% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 75% | 470 |
| July 2025 | 79% | 467 |
| August 2025 | 74% | 452 |
| September 2025 | 81% | 418 |
| October 2025 | 67% | 441 |
| November 2025 | 73% | 459 |
| December 2025 | 65% | 452 |
| January 2026 | 83% | 403 |
| February 2026 | 80% | 404 |
| March 2026 | 78% | 473 |
| April 2026 | 79% | 484 |
| May 2026 | 68% | 495 |
Same trip, other airports
Keep nerding
Based on 5,489 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.