Flight profile · Delta Air Lines
DL1748
Boston (BOS) to Detroit (DTW) · scheduled 9:05 AM – 11:18 AM
How DL1748 performs
1,090 operations, 2023-07-01 to 2026-06-30.
DL1748 arrived on time 88.1% of the time, against 79.1% for all BOS → DTW flights — this specific departure is 9.1 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 6.5 points better.
Source: US DOT Bureau of Transportation Statistics · 1,090 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1748 | 88.1% | 1.10% | -11 min | 5.2% | 1,090 |
| Delta Air Lines on BOS → DTW | 81.6% | 1.17% | -9 min | 7.4% | 5,112 |
| All BOS → DTW flights | 79.1% | 1.33% | -8 min | 8.8% | 8,042 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1748 run worse on particular days?
Thursday is historically the most reliable day and Friday the least, a gap of 4.6 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 1,090 records of DL1748 operating BOS → DTW, 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.