Flight profile · Delta Air Lines
DL1187
Detroit (DTW) to Boston (BOS) · scheduled 9:50 PM – 11:52 PM
How DL1187 performs
733 operations, 2024-06-07 to 2026-06-30.
DL1187 arrived on time 70.1% of the time, against 77.2% for all DTW → BOS flights — this specific departure is 7.1 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 7.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 733 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1187 | 70.1% | 2.05% | -6 min | 10.7% | 733 |
| Delta Air Lines on DTW → BOS | 77.9% | 1.10% | -6 min | 8.3% | 5,110 |
| All DTW → BOS flights | 77.2% | 1.37% | -7 min | 9.2% | 8,044 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1187 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| MSP→SLC Minneapolis to Salt Lake City | 2023-07-05 – 2024-06-06 | 50 | — |
| ATL→DAB Atlanta to Daytona Beach | 2024-03-10 – 2024-05-06 | 58 | — |
| DAB→ATL Daytona Beach to Atlanta | 2024-03-10 – 2024-05-06 | 58 | — |
| ATL→CAE Atlanta to Columbia | 2024-01-13 – 2024-03-09 | 12 | — |
| CAE→ATL Columbia to Atlanta | 2024-01-13 – 2024-03-09 | 12 | — |
| BNA→ATL Nashville to Atlanta | 2024-01-08 – 2024-03-08 | 47 | — |
| ATL→BNA Atlanta to Nashville | 2024-01-15 – 2024-01-28 | 12 | — |
| LGA→MIA New York to Miami | 2024-01-01 – 2024-01-07 | 7 | — |
| HPN→ATL White Plains to Atlanta | 2023-11-05 – 2023-12-15 | 41 | — |
| MSY→LAX New Orleans to Los Angeles | 2023-10-10 – 2023-10-31 | 12 | — |
| ATL→AUS Atlanta to Austin | 2023-10-09 – 2023-10-27 | 11 | — |
| AUS→ATL Austin to Atlanta | 2023-10-09 – 2023-10-27 | 11 | — |
| ATL→LIT Atlanta to Little Rock | 2023-09-10 – 2023-10-08 | 29 | — |
| LIT→ATL Little Rock to Atlanta | 2023-09-10 – 2023-10-08 | 29 | — |
| ATL→OKC Atlanta to Oklahoma City | 2023-09-05 – 2023-09-08 | 4 | — |
| OKC→ATL Oklahoma City to Atlanta | 2023-09-05 – 2023-09-08 | 4 | — |
| LGA→SLC New York to Salt Lake City | 2023-07-01 – 2023-07-08 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1187 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 733 records of DL1187 operating DTW → 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.