Flight OddsDL640 SFO → ATL
Delta Air Lines · San Francisco, CA to Atlanta, GA · 364 flights observed, 2025-07-01 to 2026-06-30 · 2,139 mi
On-time arrival
91%
Median delay
-12 min
90th percentile
+15 min
Cancellation rate
1%
How often is DL640 on time?
Across 364 flights on SFO → ATL from 2025-07-01 to 2026-06-30, DL640 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +15 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 | 328 | 91% |
| 16-30 min | 12 | 3% |
| 31-60 min | 11 | 3% |
| 61-120 min | 6 | 2% |
| 2+ hrs | 5 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 84% | -3 min |
| 2025-08 | 31 | 81% | +3 min |
| 2025-09 | 30 | 97% | +1 min |
| 2025-10 | 30 | 93% | -4 min |
| 2025-11 | 29 | 100% | -8 min |
| 2025-12 | 31 | 94% | -9 min |
| 2026-01 | 31 | 94% | -9 min |
| 2026-02 | 28 | 96% | -16 min |
| 2026-03 | 30 | 97% | -10 min |
| 2026-04 | 30 | 87% | -1 min |
| 2026-05 | 31 | 84% | +10 min |
| 2026-06 | 30 | 83% | -3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 92% |
| Tue | 53 | 91% |
| Wed | 52 | 90% |
| Thu | 52 | 92% |
| Fri | 51 | 88% |
| Sat | 51 | 88% |
| Sun | 52 | 92% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…