Wednesday, October 7 · our forecast odds · issued Mon 3:00 PM ET · 4 nonstops

Wed, Oct 7 looks like a normal day here: all 4 nonstops are 5–12% likely to arrive 15+ min late.

Safest bet that day DL 2547 ATL 09:49 → GRR 11:43 · 5% chance 15+ min late · usually 88% on time Riskiest DL 2865 ATL 21:59 → GRR 23:54 · 12% chance 15+ min late · usually 82% on time

Against a calm day 9% average chance a nonstop arrives 15+ min late; 9% for the same flights on a calm-weather day

Every nonstop on Wed, Oct 7

12-month record →

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.


DL 2547 Delta Flight history →	ATL 09:49	GRR 11:43	5%	2%	0.6%	88%
DL 2058 Delta Flight history →	ATL 15:19	GRR 17:14	8%	2%	0.6%	84%
DL 2210 Delta Flight history →	ATL 19:54	GRR 21:51	10%	2%	0.6%	80%
DL 2865 Delta Flight history →	ATL 21:59	GRR 23:54	12%	2%	0.6%	82%

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 Wed, Oct 7 (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