Tuesday, October 6 · our forecast odds · issued Sun 5:00 PM ET · 4 nonstops

Tue, Oct 6 looks like a normal day here: all 4 nonstops are 2–6% likely to arrive 15+ min late.

Safest bet that day WN 1537 BWI 09:07 → ISP 10:23 · 2% chance 15+ min late Riskiest WN 963 BWI 20:00 → ISP 21:19 · 6% chance 15+ min late

Against a calm day 4% average chance a nonstop arrives 15+ min late; 4% 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 1537 Southwest	BWI 09:07	ISP 10:23	2%	1%	0.5%	no record
WN 3974 Southwest	BWI 11:04	ISP 12:21	4%	1%	0.5%	no record
WN 665 Southwest	BWI 15:43	ISP 17:04	5%	2%	0.5%	no record
WN 963 Southwest	BWI 20:00	ISP 21:19	6%	2%	0.6%	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