Southwest Airlines SAT to DAL on-time performance
Southwest Airlines nonstop flights from San Antonio to Dallas · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
1.1%
31 flights
Avg arrival delay
11 min
58 min when late
Rank on route
#1 of 1
route average 83% on time
Key facts
- Southwest Airlines flights on SAT to DAL arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 1.1% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 1 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was late-arriving aircraft (56%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft56%
- Air traffic control & airport congestion24%
- Airline (crew, maintenance, cleaning, fueling)16%
- Extreme weather5%
- Security0%
Other airlines on SAT to DAL
2,743 Southwest Airlines flights tracked on this route; 31 cancelled, 9 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.