Tuesday, October 6 · our forecast odds · issued Sun 3:00 PM ET · 6 nonstops

Tue, Oct 6 looks like a normal day here: all 6 nonstops are 3–11% likely to arrive 15+ min late.

Safest bet that day WN 2740 MDW 06:51 → LAS 08:42 · 3% chance 15+ min late Riskiest WN 4645 MDW 20:22 → LAS 22:07 · 11% chance 15+ min late

Against a calm day 7% average chance a nonstop arrives 15+ min late; 8% 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 2740 Southwest	MDW 06:51	LAS 08:42	3%	1%	0.5%	no record
WN 2741 Southwest	MDW 08:47	LAS 10:28	6%	1%	0.5%	no record
WN 3523 Southwest	MDW 14:10	LAS 16:07	7%	2%	0.5%	no record
WN 578 Southwest	MDW 12:10	LAS 14:05	8%	2%	0.5%	no record
WN 2742 Southwest	MDW 16:46	LAS 18:32	8%	2%	0.5%	no record
WN 4645 Southwest	MDW 20:22	LAS 22:07	11%	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