Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
DL 866 · Detroit (DTW) → Miami (MIA)
Sold by Delta. Still flying: 56 of the last 56 days (Daily).
Arrives on time74%within 15 minutes, of 234 flights
Cancelled1.3%of scheduled flights
An hour or more late7%of flights that operated
When late, on average57 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves DTW
- 14:43
- Arrives MIA
- 18:04
- Flight time
- 3h 21m
- Days flown, last 8 weeks
- 56 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at DTW
All flights leaving Detroit (DTW) at 2–3 pm, wherever they’re going: 78% left within 15 minutes and 1.6% were cancelled (10,405 flights in the year). Other Delta flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.