Southwest Airlines DAL to SAT on-time performance
Southwest Airlines nonstop flights from Dallas to San Antonio · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
1.1%
30 flights
Avg arrival delay
14 min
56 min when late
Rank on route
#1 of 1
route average 77% on time
Key facts
- Southwest Airlines flights on DAL to SAT arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 1.1% were cancelled, and 7% arrived an hour or more late.
- That ranks #1 of 1 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (61%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft61%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion8%
- Extreme weather2%
- Security0%
Other airlines on DAL to SAT
2,742 Southwest Airlines flights tracked on this route; 30 cancelled, 3 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.