Southwest Airlines SLC to SAN on-time performance
Southwest Airlines nonstop flights from Salt Lake City to San Diego · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
0.2%
1 flights
Avg arrival delay
13 min
44 min when late
Rank on route
#5 of 5
route average 82% on time
Key facts
- Southwest Airlines flights on SLC to SAN arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 5% arrived an hour or more late.
- That ranks #5 of 5 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was late-arriving aircraft (48%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion21%
- Extreme weather1%
- Security0%
Other airlines on SLC to SAN
- Delta Air Lines83% on time · 10 min avg delay
- SkyWest Airlines85% on time · 10 min avg delay
- Frontier Airlines84% on time · 9 min avg delay
- Alaska Airlines100% on time · 0 min avg delay
Full SLC to SAN comparison →
Southwest Airlines on-time record across all routes →
408 Southwest Airlines flights tracked on this route; 1 cancelled, 2 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.