Southwest Airlines SJC to SAN on-time performance
Southwest Airlines nonstop flights from San Jose to San Diego · Aug 2025 – Jul 2026
On-time arrivals
69%
arrived < 15 min late
Cancelled
0.9%
34 flights
Avg arrival delay
16 min
46 min when late
Rank on route
#3 of 4
route average 71% on time
Key facts
- Southwest Airlines flights on SJC to SAN arrived on time 69% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 7% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 71% on time overall.
- The largest source of delay minutes was late-arriving aircraft (43%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft43%
- Air traffic control & airport congestion39%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather0%
- Security0%
Other airlines on SJC to SAN
- SkyWest Airlines75% on time · 13 min avg delay
- Alaska Airlines84% on time · 9 min avg delay
- Spirit Airlines43% on time · 23 min avg delay
Full SJC to SAN comparison →
Southwest Airlines on-time record across all routes →
3,740 Southwest Airlines flights tracked on this route; 34 cancelled, 7 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.