Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 4 nonstops

Sun, Oct 11 looks like a normal day here: all 4 nonstops are 8–18% likely to arrive 15+ min late.

Safest bet that day DL 2727 DSM 05:41 → ATL 08:48 · 8% chance 15+ min late · usually 94% on time Riskiest DL 2086 DSM 18:37 → ATL 21:59 · 18% chance 15+ min late · usually 85% 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 2727 Delta Flight history →	DSM 05:41	ATL 08:48	8%	5%	0.7%	94%
DL 1704 Delta Flight history →	DSM 11:30	ATL 14:43	13%	4%	0.7%	90%
DL 2094 Delta Flight history →	DSM 14:25	ATL 17:38	17%	7%	0.7%	84%
DL 2086 Delta Flight history →	DSM 18:37	ATL 21:59	18%	7%	1.0%	85%

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