Los Angeles (LAX) to San Jose (SJC): On-Time Performance
Data through May 2026
On this route, when you fly matters more than who you fly. Book the morning: morning departures from LAX reach SJC on time 93% of the time, versus 81% later in the day. Overall the route posts a 87% on-time rate, ahead of the national 78%. Among carriers, SkyWest Airlines has the edge at 89%.
- On-time
- 87%
- arrived <15 min late
- Avg delay
- 7 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 12
- last 12 months
- Duration
- 1h 17m
- scheduled
- Distance
- 308 mi
Best airline from LAX to SJC
5 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 89% | 7 min | 0.2% | 5,531 |
| Delta Air Lines | 87% | 7 min | 3.3% | 361 |
| Southwest Airlines | 86% | 8 min | 0.3% | 3,550 |
| Spirit Airlines | 84% | 10 min | 1.1% | 537 |
| Frontier Airlines | 80% | 13 min | 1.1% | 261 |
Monthly on-time trend
Best time to fly from LAX to SJC
Aim for departures around 6 a.m. (97% on-time); avoid 7 p.m. departures (77%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 8 min |
| Tuesdaybest | 91% | 6 min |
| Wednesday | 90% | 6 min |
| Thursday | 89% | 7 min |
| Friday | 84% | 9 min |
| Saturday | 90% | 6 min |
| Sunday | 84% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations42%
- National airspace system8%
- Weather7%
Frequently asked questions
- How often are flights from LAX to SJC delayed?
- 13% of LAX–SJC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 7 minutes.
- Which airline is most reliable from LAX to SJC?
- SkyWest Airlines has the best on-time record on this route at 89%, based on 5,531 flights. 5 airlines flew LAX–SJC frequently enough to compare in this period.
- What is the best time of day to fly from LAX to SJC?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 7 p.m. have the worst (77%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LAX to SJC?
- The scheduled LAX–SJC flight time averages 1h 17m over 308 miles. Actual arrival times vary — flights on this route land 15+ minutes late 13% of the time.
- How often are LAX to SJC flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for LAX to SJC?
- Tuesday flights have the best record at 91% on-time. Day-of-week differences on this route are modest.
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Based on 10,248 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.