Flight OddsDL1979 SAT → ATL
Delta Air Lines · San Antonio, TX to Atlanta, GA · 149 flights observed, 2025-07-06 to 2025-12-19 · 874 mi
DL1979 covers more than one route in the data window — the stats below are for SAT → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-10 min
90th percentile
+27 min
Cancellation rate
1%
How often is DL1979 on time?
Across 149 flights on SAT → ATL from 2025-07-06 to 2025-12-19, DL1979 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +27 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 127 | 86% |
| 16-30 min | 8 | 5% |
| 31-60 min | 6 | 4% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 15 | 47% | +26 min |
| 2025-08 | 27 | 85% | -3 min |
| 2025-09 | 30 | 93% | -11 min |
| 2025-10 | 30 | 87% | -2 min |
| 2025-11 | 27 | 96% | -10 min |
| 2025-12 | 19 | 89% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 83% |
| Tue | 19 | 89% |
| Wed | 19 | 89% |
| Thu | 24 | 88% |
| Fri | 22 | 77% |
| Sat | 16 | 100% |
| Sun | 24 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…