Tuesday, October 6 · our forecast odds · issued Sun 9:00 PM ET · 5 nonstops

Tue, Oct 6 looks like a normal day here: all 5 nonstops are 5–15% likely to arrive 15+ min late.

Safest bet that day WN 3578 SJC 06:45 → DEN 10:21 · 5% chance 15+ min late Riskiest WN 3580 SJC 14:05 → DEN 17:34 · 15% chance 15+ min late

Against a calm day 9% average chance a nonstop arrives 15+ min late; 7% 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 3578 Southwest	SJC 06:45	DEN 10:21	5%	1%	0.5%	no record
UA 2013 United	SJC 08:33	DEN 12:18	7%	2%	0.5%	no record
UA 2076 United	SJC 12:54	DEN 16:51	8%	3%	0.5%	no record
WN 3579 Southwest	SJC 10:50	DEN 14:19	9%	2%	0.5%	no record
WN 3580 Southwest	SJC 14:05	DEN 17:34	15%	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