Southwest Airlines SAT to LAS on-time performance
Southwest Airlines nonstop flights from San Antonio to Las Vegas · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
0.4%
6 flights
Avg arrival delay
11 min
52 min when late
Rank on route
#2 of 3
route average 80% on time
Key facts
- Southwest Airlines flights on SAT to LAS arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 5% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 80% on time overall.
- The largest source of delay minutes was late-arriving aircraft (52%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft52%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion18%
- Extreme weather4%
- Security0%
Other airlines on SAT to LAS
- Frontier Airlines77% on time · 17 min avg delay
- Spirit Airlines81% on time · 20 min avg delay
Full SAT to LAS comparison →
Southwest Airlines on-time record across all routes →
1,569 Southwest Airlines flights tracked on this route; 6 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.