Best Time to Fly SJC to LAX: On-Time Stats by Hour & Airline
Norman Y. Mineta San Jose International → Los Angeles International
Data through July 2026 · Last updated October 18, 2026
4,476 flights were scheduled from San Jose (SJC) to Los Angeles (LAX) in the last 12 months, and 85.8% of those that flew arrived on time, 8.2 points above the US average of 77.6%.
SkyWest Airlines was the most punctual of the 4 airlines on the route at 92.3%, while Frontier Airlines trailed at 77.7%.
January has been the best month (91% on time) and Friday the weakest day of the week (83%).
0.8% of flights were cancelled, versus 1.8% nationally.
SJC to LAX 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 | 92.3% | 74 min | 0.4% | 1,953 |
| Delta Air Lines | 92.2% | 52 min | 2.7% | 555 |
| Southwest Airlines | 77.7% | 46 min | 0.5% | 1,844 |
| Frontier Airlines | 77.7% | 47 min | 4.3% | 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 SJC to LAX
On-time arrival % by scheduled departure hour (local time), 10,053 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 95.4% | 0.4% | 751 |
| 7am–8am | 93.9% | 0.7% | 894 |
| 8am–9am | 91.5% | 0.3% | 390 |
| 9am–10am | 92.8% | 1.0% | 914 |
| 10am–11am | 87.1% | 0.4% | 536 |
| 11am–12pm | 91.6% | 0.6% | 649 |
| 12pm–1pm | 83.0% | 0.3% | 289 |
| 1pm–2pm | 89.1% | 0.7% | 584 |
| 2pm–3pm | 86.6% | 0.2% | 636 |
| 3pm–4pm | 87.5% | 0.1% | 655 |
| 4pm–5pm | 84.1% | 0.0% | 541 |
| 5pm–6pm | 83.0% | 0.3% | 715 |
| 6pm–7pm | 84.7% | 0.4% | 815 |
| 7pm–8pm | 75.8% | 1.0% | 397 |
| 8pm–9pm | 79.2% | 0.5% | 1,003 |
| 9pm–10pm | 82.4% | 0.0% | 284 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SJC to LAX
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) | 88.4% | -0.2 pts | 0.0% | 198 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.7% | -12.9 pts | 1.1% | 382 |
| Summer peak (Jun 15 - Aug 15) | 83.8% | -4.7 pts | 0.6% | 1,629 |
| All other days | 88.5% | — | 0.4% | 7,844 |
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).