Southwest Airlines DEN to SJC on-time performance
Southwest Airlines nonstop flights from Denver to San Jose · Aug 2025 – Jul 2026
On-time arrivals
70%
arrived < 15 min late
Cancelled
0.6%
9 flights
Avg arrival delay
17 min
51 min when late
Rank on route
#3 of 3
route average 74% on time
Key facts
- Southwest Airlines flights on DEN to SJC arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 8% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was late-arriving aircraft (58%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft58%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion9%
- Extreme weather0%
- Security0%
Other airlines on DEN to SJC
- United Airlines81% on time · 13 min avg delay
- Frontier Airlines80% on time · 6 min avg delay
Full DEN to SJC comparison →
Southwest Airlines on-time record across all routes →
1,526 Southwest Airlines flights tracked on this route; 9 cancelled, 0 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.