Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 8:00 PM ET · 4 nonstops

Sun, Oct 11: DL 1375 at 09:15 is the safest bet, 13% chance of being 15+ min late; the others run 18–29%.

Safest bet that day DL 1375 ATL 09:15 → SYR 11:25 · 13% chance 15+ min late · usually 87% on time Riskiest DL 2123 ATL 21:35 → SYR 23:48 · 29% chance 15+ min late · usually 76% on time

Every nonstop on Sun, Oct 11

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 1375 Delta Flight history →	ATL 09:15	SYR 11:25	13%	3%	0.6%	87%
DL 2991 Delta Flight history →	ATL 12:19	SYR 14:29	18%	3%	0.6%	74%
DL 2690 Delta Flight history →	ATL 15:43	SYR 17:59	23%	4%	0.7%	83%
DL 2123 Delta Flight history →	ATL 21:35	SYR 23:48	29%	6%	0.8%	76%

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 Sun, Oct 11 (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