Best Time to Fly LAX to SJC: On-Time Stats by Hour & Airline
Los Angeles International → Norman Y. Mineta San Jose International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 86.2% of Los Angeles (LAX) to San Jose (SJC) flights arrived on time (4,473 scheduled flights). That is 8.6 points above the national average of 77.6%.
Among 4 airlines, SkyWest Airlines led with 91.0% on time and Frontier Airlines was last with 80.5%.
Over 24 months, Tuesday was the most reliable day (91% on time) and December the worst month (82%).
The cancellation rate was 0.9% (US average 1.8%).
LAX 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 | 91.0% | 56 min | 0.4% | 1,949 |
| Delta Air Lines | 86.5% | 58 min | 2.5% | 556 |
| Southwest Airlines | 81.5% | 50 min | 0.8% | 1,844 |
| Frontier Airlines | 80.5% | 53 min | 3.4% | 117 |
| United Airlines | Limited data | 1 | ||
| American Airlines | Limited data | 6 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAX to SJC
On-time arrival % by scheduled departure hour (local time), 10,022 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 96.3% | 0.0% | 54 |
| 6am–7am | 96.6% | 1.0% | 479 |
| 7am–8am | 94.5% | 1.1% | 888 |
| 8am–9am | 94.0% | 0.4% | 518 |
| 9am–10am | 93.1% | 0.9% | 762 |
| 10am–11am | 89.3% | 0.3% | 318 |
| 11am–12pm | 91.3% | 0.5% | 738 |
| 12pm–1pm | 88.1% | 0.0% | 536 |
| 1pm–2pm | 91.2% | 0.5% | 620 |
| 2pm–3pm | 88.0% | 0.0% | 551 |
| 3pm–4pm | 86.2% | 0.2% | 544 |
| 4pm–5pm | 86.6% | 0.3% | 681 |
| 5pm–6pm | 84.3% | 0.2% | 599 |
| 6pm–7pm | 84.1% | 0.4% | 922 |
| 7pm–8pm | 75.7% | 0.6% | 473 |
| 8pm–9pm | 80.3% | 0.1% | 647 |
| 9pm–10pm | 79.3% | 0.4% | 684 |
| 10pm–11pm | Limited data | 8 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LAX 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) | 88.9% | +0.3 pts | 0.0% | 198 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.9% | -12.7 pts | 0.5% | 384 |
| Summer peak (Jun 15 - Aug 15) | 85.9% | -2.7 pts | 0.7% | 1,628 |
| All other days | 88.6% | — | 0.4% | 7,812 |
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).