Delta Air Lines SAT to ATL on-time performance
Delta Air Lines nonstop flights from San Antonio to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
87%
arrived < 15 min late
Cancelled
1.9%
50 flights
Avg arrival delay
10 min
77 min when late
Rank on route
#1 of 3
route average 86% on time
Key facts
- Delta Air Lines flights on SAT to ATL arrived on time 87% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 4% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)43%
- Late-arriving aircraft34%
- Air traffic control & airport congestion19%
- Extreme weather4%
- Security0%
Other airlines on SAT to ATL
- Southwest Airlines78% on time · 11 min avg delay
- Frontier Airlines66% on time · 37 min avg delay
Full SAT to ATL comparison →
Delta Air Lines on-time record across all routes →
2,611 Delta Air Lines flights tracked on this route; 50 cancelled, 13 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.