Flight OddsDL531 SFO → ATL
Delta Air Lines · San Francisco, CA to Atlanta, GA · 235 flights observed, 2025-07-01 to 2026-06-30 · 2,139 mi
DL531 covers more than one route in the data window — the stats below are for SFO → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-7 min
90th percentile
+40 min
Cancellation rate
0%
How often is DL531 on time?
Across 235 flights on SFO → ATL from 2025-07-01 to 2026-06-30, DL531 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +40 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 184 | 79% |
| 16-30 min | 18 | 8% |
| 31-60 min | 18 | 8% |
| 61-120 min | 9 | 4% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 71% | +27 min |
| 2025-08 | 31 | 84% | -6 min |
| 2025-09 | 30 | 73% | +10 min |
| 2025-10 | 31 | 87% | +5 min |
| 2025-11 | 28 | 79% | +0 min |
| 2025-12 | 19 | 95% | -5 min |
| 2026-02 | 3 | 33% | +13 min |
| 2026-03 | 4 | 75% | +11 min |
| 2026-04 | 2 | 50% | +24 min |
| 2026-05 | 25 | 80% | -2 min |
| 2026-06 | 30 | 73% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 32 | 88% |
| Tue | 33 | 85% |
| Wed | 32 | 75% |
| Thu | 32 | 72% |
| Fri | 33 | 79% |
| Sat | 40 | 83% |
| Sun | 32 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…