Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · 4 nonstops

Fri, Oct 9 looks like a normal day here: all 4 nonstops are 12–19% likely to arrive 15+ min late.

Safest bet that day DL 4123 DTW 07:00 → SYR 08:31 · 12% chance 15+ min late · usually 85% on time Riskiest DL 1689 DTW 21:35 → SYR 22:58 · 19% chance 15+ min late · usually 78% on time

Every nonstop on Fri, Oct 9

12-month record →

Ranked by the chance of arriving 15+ minutes late (typical odds: the weather this date has had in past years), 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.


DL 4123 Delta flown by SkyWest Flight history →	DTW 07:00	SYR 08:31	12%	5%	0.6%	85%
DL 3533 Delta flown by SkyWest Flight history →	DTW 11:31	SYR 13:01	12%	6%	0.6%	76%
DL 3565 Delta flown by SkyWest Flight history →	DTW 15:04	SYR 16:35	15%	7%	0.6%	79%
DL 1689 Delta Flight history →	DTW 21:35	SYR 22:58	19%	5%	0.6%	78%

How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); 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 Fri, Oct 9 (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