Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
DL 4085 · Grand Rapids (GRR) → Detroit (DTW)
Sold by Delta, flown by SkyWest. Still flying: 1 of the last 56 days.
Arrives on time86%within 15 minutes, of 28 flights
Cancelled0.0%of scheduled flights
An hour or more late4%of flights that operated
When late, on average43 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves GRR
- 08:16
- Arrives DTW
- 09:14
- Flight time
- 58m
- Days flown, last 8 weeks
- 1 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 GRR
All flights leaving Grand Rapids (GRR) at 8–9 am, wherever they’re going: 88% left within 15 minutes and 1.0% were cancelled (1,385 flights in the year). Other Delta flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.