Southwest Airlines SAT to ATL on-time performance
Southwest Airlines nonstop flights from San Antonio to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
78%
arrived < 15 min late
Cancelled
0.3%
1 flights
Avg arrival delay
11 min
44 min when late
Rank on route
#2 of 3
route average 86% on time
Key facts
- Southwest Airlines flights on SAT to ATL arrived on time 78% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was late-arriving aircraft (46%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft46%
- Air traffic control & airport congestion27%
- Airline (crew, maintenance, cleaning, fueling)23%
- Extreme weather4%
- Security0%
Other airlines on SAT to ATL
- Delta Air Lines87% on time · 10 min avg delay
- Frontier Airlines66% on time · 37 min avg delay
Full SAT to ATL comparison →
Southwest Airlines on-time record across all routes →
305 Southwest Airlines flights tracked on this route; 1 cancelled, 5 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.