Flight OddsDL665 ATL → ONT
Delta Air Lines · Atlanta, GA to Ontario, CA · 365 flights observed, 2025-07-01 to 2026-06-30 · 1,900 mi
DL665 covers more than one route in the data window — the stats below are for ATL → ONT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-6 min
90th percentile
+25 min
Cancellation rate
2%
How often is DL665 on time?
Across 365 flights on ATL → ONT from 2025-07-01 to 2026-06-30, DL665 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +25 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 306 | 86% |
| 16-30 min | 22 | 6% |
| 31-60 min | 11 | 3% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 100% | -6 min |
| 2025-08 | 31 | 90% | 0 min |
| 2025-09 | 30 | 87% | +2 min |
| 2025-10 | 31 | 84% | +1 min |
| 2025-11 | 30 | 87% | +6 min |
| 2025-12 | 28 | 93% | -7 min |
| 2026-01 | 29 | 79% | +11 min |
| 2026-02 | 28 | 79% | -1 min |
| 2026-03 | 29 | 93% | -15 min |
| 2026-04 | 30 | 80% | -1 min |
| 2026-05 | 30 | 80% | +8 min |
| 2026-06 | 29 | 79% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 88% |
| Tue | 52 | 85% |
| Wed | 51 | 90% |
| Thu | 51 | 86% |
| Fri | 51 | 82% |
| Sat | 49 | 84% |
| Sun | 51 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…