Best Time to Fly SAN to SJC: On-Time Stats by Hour & Airline
San Diego International → Norman Y. Mineta San Jose International
Data through July 2026 · Last updated October 18, 2026
4,958 flights were scheduled from San Diego (SAN) to San Jose (SJC) in the last 12 months, and 76.5% of those that flew arrived on time, 1.2 points below the US average of 77.6%.
SkyWest Airlines was the most punctual of the 3 airlines on the route at 81.2%, while Southwest Airlines trailed at 75.0%.
January has been the best month (86% on time) and Friday the weakest day of the week (69%).
0.8% of flights were cancelled, versus 1.8% nationally.
SAN to SJC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 81.2% | 56 min | 1.2% | 1,126 |
| Alaska Airlines | 78.5% | 30 min | 0.0% | 79 |
| Southwest Airlines | 75.0% | 48 min | 0.8% | 3,746 |
| Spirit Airlines | Limited data | 7 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAN to SJC
On-time arrival % by scheduled departure hour (local time), 10,661 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 96.5% | 1.0% | 486 |
| 7am–8am | 93.4% | 0.5% | 592 |
| 8am–9am | 84.5% | 0.4% | 1,086 |
| 9am–10am | 85.9% | 0.8% | 658 |
| 10am–11am | 82.1% | 0.8% | 626 |
| 11am–12pm | 79.4% | 1.6% | 503 |
| 12pm–1pm | 74.2% | 0.9% | 777 |
| 1pm–2pm | 73.0% | 1.2% | 649 |
| 2pm–3pm | 75.0% | 0.5% | 654 |
| 3pm–4pm | 77.4% | 0.2% | 489 |
| 4pm–5pm | 67.0% | 1.0% | 774 |
| 5pm–6pm | 71.1% | 0.5% | 919 |
| 6pm–7pm | 69.8% | 0.7% | 620 |
| 7pm–8pm | 66.1% | 1.0% | 504 |
| 8pm–9pm | 70.9% | 1.7% | 763 |
| 9pm–10pm | 67.1% | 2.2% | 510 |
| 10pm–11pm | 78.4% | 0.0% | 51 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAN to SJC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 80.0% | +1.2 pts | 0.0% | 220 |
| Christmas & New Year (Dec 20 - Jan 3) | 61.3% | -17.5 pts | 4.7% | 428 |
| Summer peak (Jun 15 - Aug 15) | 72.2% | -6.5 pts | 0.4% | 1,943 |
| All other days | 78.8% | — | 0.8% | 8,070 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).