Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
DL 4166 · Detroit (DTW) → Appleton (ATW)
Sold by Delta, flown by SkyWest. Still flying: 56 of the last 56 days (Daily).
Arrives on time74%within 15 minutes, of 249 flights
Cancelled0.8%of scheduled flights
An hour or more late13%of flights that operated
When late, on average85 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Appleton is 1 h behind Detroit).
- Leaves DTW
- 17:24
- Arrives ATW
- 17:50
- Flight time
- 1h 28m
- 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 5–6 pm, wherever they’re going: 70% left within 15 minutes and 2.4% were cancelled (6,752 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.