Flight OddsATL → ONT Delta Air Lines
Delta Air Lines · Atlanta, GA to Ontario, CA · 937 flights, 2025-07-01 to 2026-06-30 · aggregated across 6 flight numbers
On-time arrival
78%
Median delay
-2 min
90th percentile
+46 min
Cancellation rate
2%
How on-time is Delta Air Lines from ATL to ONT?
Across every Delta Air Lines flight number on ATL → ONT (937 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +46 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 714 | 78% |
| 16-30 min | 77 | 8% |
| 31-60 min | 67 | 7% |
| 61-120 min | 46 | 5% |
| 2+ hrs | 16 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 87 | 74% | +22 min |
| 2025-08 | 81 | 79% | +7 min |
| 2025-09 | 77 | 84% | +3 min |
| 2025-10 | 85 | 82% | +6 min |
| 2025-11 | 83 | 83% | +5 min |
| 2025-12 | 84 | 73% | +6 min |
| 2026-01 | 60 | 73% | +13 min |
| 2026-02 | 56 | 73% | +3 min |
| 2026-03 | 60 | 88% | -10 min |
| 2026-04 | 78 | 77% | +4 min |
| 2026-05 | 91 | 74% | +8 min |
| 2026-06 | 78 | 72% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 137 | 74% |
| Tue | 136 | 74% |
| Wed | 132 | 83% |
| Thu | 133 | 80% |
| Fri | 135 | 77% |
| Sat | 112 | 78% |
| Sun | 135 | 77% |
DL flight numbers on ATL → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…