Flight profile · Delta Air Lines
DL866
Detroit (DTW) to Miami (MIA) · scheduled 2:05 PM – 5:10 PM
How DL866 performs
521 operations, 2024-06-07 to 2026-06-30.
DL866 arrived on time 75.2% of the time, against 77.4% for all DTW → MIA flights — this specific departure is 2.2 percentage points worse than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 521 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL866 | 75.2% | 0.96% | -5 min | 8.4% | 521 |
| Delta Air Lines on DTW → MIA | 75.9% | 0.75% | -4 min | 8.0% | 2,796 |
| All DTW → MIA flights | 77.4% | 1.14% | -5 min | 7.2% | 5,192 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL866 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 |
|---|---|---|---|
| MIA→DTW Miami to Detroit | 2024-06-07 – 2026-06-30 | 398 | 68.1% |
| ATL→JAN Atlanta to Jackson | 2025-08-11 – 2025-12-19 | 130 | 84.4% |
| JAN→ATL Jackson to Atlanta | 2025-08-11 – 2025-12-19 | 130 | 87.4% |
| DEN→LGA Denver to New York | 2024-08-01 – 2024-09-08 | 39 | — |
| ATL→SEA Atlanta to Seattle | 2024-05-07 – 2024-06-06 | 31 | — |
| MSP→RSW Minneapolis to Fort Myers | 2024-04-09 – 2024-05-06 | 28 | — |
| RSW→MSP Fort Myers to Minneapolis | 2024-04-09 – 2024-05-06 | 28 | — |
| LAX→JFK Los Angeles to New York | 2024-03-10 – 2024-04-08 | 26 | — |
| MSP→DFW Minneapolis to Dallas–Fort Worth | 2024-01-08 – 2024-03-09 | 62 | — |
| SLC→DFW Salt Lake City to Dallas–Fort Worth | 2023-11-05 – 2024-01-07 | 63 | — |
| JFK→PDX New York to Portland | 2023-09-07 – 2023-11-04 | 42 | — |
| PDX→JFK Portland to New York | 2023-09-07 – 2023-11-04 | 42 | — |
| DTW→SAN Detroit to San Diego | 2023-07-01 – 2023-09-04 | 47 | — |
Because the same number has served different journeys, the statistics above describe only the route DL866 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 521 records of DL866 operating DTW → MIA, 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.