Southwest Airlines SFO to LAS on-time performance
Southwest Airlines nonstop flights from San Francisco to Las Vegas · Aug 2025 – Jul 2026
On-time arrivals
64%
arrived < 15 min late
Cancelled
0.7%
9 flights
Avg arrival delay
24 min
62 min when late
Rank on route
#3 of 5
route average 73% on time
Key facts
- Southwest Airlines flights on SFO to LAS arrived on time 64% of the time in Aug 2025 – Jul 2026.
- 0.7% were cancelled, and 14% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 73% on time overall.
- The largest source of delay minutes was late-arriving aircraft (64%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft64%
- Airline (crew, maintenance, cleaning, fueling)21%
- Air traffic control & airport congestion14%
- Extreme weather0%
- Security0%
Other airlines on SFO to LAS
- United Airlines79% on time · 13 min avg delay
- Alaska Airlines75% on time · 17 min avg delay
- Frontier Airlines64% on time · 33 min avg delay
- SkyWest Airlines50% on time · 41 min avg delay
Full SFO to LAS comparison →
Southwest Airlines on-time record across all routes →
1,314 Southwest Airlines flights tracked on this route; 9 cancelled, 1 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.