Flight profile · Delta Air Lines
DL865
Atlanta (ATL) to Boston (BOS) · scheduled 10:25 PM – 12:59 AM
How DL865 performs
1,088 operations, 2023-07-01 to 2026-06-30.
DL865 arrived on time 79.3% of the time, against 77.1% for all ATL → BOS flights — this specific departure is 2.3 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 1,088 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL865 | 79.3% | 1.65% | -7 min | 7.2% | 1,088 |
| Delta Air Lines on ATL → BOS | 79.1% | 1.01% | -6 min | 6.5% | 10,893 |
| All ATL → BOS flights | 77.1% | 1.26% | -6 min | 7.9% | 15,009 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL865 run worse on particular days?
Saturday is historically the most reliable day and Thursday the least, a gap of 11.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,088 records of DL865 operating ATL → BOS, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.