Tuesday, October 6 · our forecast odds · issued Mon 4:00 AM ET · 3 nonstops

Tomorrow looks like a normal day here: all 3 nonstops are 3–9% likely to arrive 15+ min late.

Safest bet that day WN 663 BNA 08:00 → SAT 10:20 · 3% chance 15+ min late · usually 88% on time Riskiest WN 518 BNA 20:42 → SAT 22:56 · 9% chance 15+ min late

Against a calm day 6% average chance a nonstop arrives 15+ min late; 5% for the same flights on a calm-weather day

Every nonstop on Tue, Oct 6

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.


WN 663 Southwest Flight history →	BNA 08:00	SAT 10:20	3%	1%	0.4%	88%
WN 1009 Southwest	BNA 12:29	SAT 14:44	6%	2%	0.4%	no record
WN 518 Southwest	BNA 20:42	SAT 22:56	9%	2%	0.5%	no record

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 Tue, Oct 6 (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