Today: one nonstop, DL 5832 at 19:45, with a 11% chance of arriving 15+ min late.

Safest bet today DL 5832 DTW 19:45 → SDF 21:12 · 11% chance 15+ min late · usually 79% on time

Against a calm day 11% average chance a nonstop arrives 15+ min late; 11% for the same flights on a calm-weather day

Every nonstop today

Ranked by the chance of arriving 15+ minutes late, with each flight’s on-time record over Aug 2025 – Jul 2026 beside it. Times are local. Pick a flight for its forecast. Click a column to sort. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday. 1 flight that already left today is not shown.


DL 5832 Delta flown by Republic Flight history →	DTW 19:45	SDF 21:12	11%	4%	0.1%	79%
DL 5160 Delta flown by Endeavor no forecast: 12-month record	DTW 12:13	SDF 13:39	24%	11%	2.2%	76%
DL 4947 Delta flown by Endeavor no forecast: 12-month record	DTW 15:18	SDF 16:46	39%	22%	1.8%	61%

How these are worked out. Each flight’s odds are our forecast for that day; flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Mon, Oct 5 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON