Thursday, October 8 · our forecast odds · issued Tue 3:00 AM ET · 3 nonstops

Thu, Oct 8 looks rough: weather pushes the average chance of arriving 15+ min late to 19%, against 7% on a calm day. Safest: WN 3411 at 09:21, 8%.

Safest bet that day WN 3411 RSW 09:21 → BWI 12:09 · 8% chance 15+ min late Riskiest WN 3604 RSW 19:21 → BWI 22:08 · 28% chance 15+ min late

Weather 19% average chance a nonstop arrives 15+ min late; 7% for the same flights on a calm-weather day

Every nonstop on Thu, Oct 8

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 3411 Southwest	RSW 09:21	BWI 12:09	8%	2%	1.2%	no record
WN 3603 Southwest	RSW 14:26	BWI 17:11	20%	6%	1.2%	no record
WN 3604 Southwest	RSW 19:21	BWI 22:08	28%	10%	1.3%	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 Thu, Oct 8 (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