Historical on-time performance
Santa Ana to San Jose
342 miData through May 2026Source: US DOT · BTS
Flights on SNA–SJC arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 2,653 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time86%Medianon timep9020 minCancel0.8%Flights2,653
Why flights run late
Delay causes
- Airline21%
- Weather0%
- Air traffic (NAS)3%
- Late aircraft75%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline86%
- Weather5%
- Air traffic (NAS)5%
- Security5%
Most cancellations here are attributed to Airline. Shares are among 21 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SNA → SJC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 95% on time.
- Mornings95% on time · p90 on time · 2,260 flights
- Middays88% on time · p90 15 min · 1,922 flights
- Afternoons82% on time · p90 30 min · 1,600 flights
- Overnights82% on time · p90 20 min · 665 flights
- Evenings76% on time · p90 40 min · 1,627 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 92% on time.
- Tuesdays92% on time · p90 10 min · 1,060 flights
- Saturdays90% on time · p90 10 min · 662 flights
- Wednesdays89% on time · p90 15 min · 1,063 flights
- Mondays85% on time · p90 20 min · 1,364 flights
- Thursdays85% on time · p90 25 min · 1,365 flights
- Fridays83% on time · p90 25 min · 1,375 flights
- Sundays82% on time · p90 25 min · 1,185 flights
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