Flight OddsDL665 ONT → ATL
Delta Air Lines · Ontario, CA to Atlanta, GA · 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 ONT → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-12 min
90th percentile
+25 min
Cancellation rate
2%
How often is DL665 on time?
Across 365 flights on ONT → ATL from 2025-07-01 to 2026-06-30, DL665 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -12 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 | 305 | 86% |
| 16-30 min | 18 | 5% |
| 31-60 min | 12 | 3% |
| 61-120 min | 14 | 4% |
| 2+ hrs | 5 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 93% | -17 min |
| 2025-08 | 31 | 94% | -18 min |
| 2025-09 | 30 | 93% | -11 min |
| 2025-10 | 30 | 87% | -10 min |
| 2025-11 | 29 | 76% | +15 min |
| 2025-12 | 30 | 87% | -3 min |
| 2026-01 | 29 | 72% | +24 min |
| 2026-02 | 28 | 93% | -13 min |
| 2026-03 | 28 | 86% | +0 min |
| 2026-04 | 30 | 97% | -4 min |
| 2026-05 | 31 | 71% | +8 min |
| 2026-06 | 29 | 86% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 81% |
| Tue | 53 | 89% |
| Wed | 51 | 90% |
| Thu | 50 | 88% |
| Fri | 49 | 88% |
| Sat | 50 | 82% |
| Sun | 49 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…