Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 7 nonstops

Wed, Oct 7: WN 2205 at 06:21 is the safest bet, 5% chance of being 15+ min late; the others run 8–15%.

Safest bet that day WN 2205 LAS 06:21 → MDW 11:45 · 5% chance 15+ min late Riskiest WN 4233 LAS 16:59 → MDW 22:23 · 15% chance 15+ min late

Every nonstop on Wed, Oct 7

12-month record →

Ranked by the chance of arriving 15+ minutes late (typical odds: the weather this date has had in past years), 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 2205 Southwest	LAS 06:21	MDW 11:45	5%	1%	0.7%	no record
WN 2211 Southwest	LAS 08:01	MDW 13:25	8%	1%	0.7%	no record
WN 2212 Southwest	LAS 00:32	MDW 06:00	9%	1%	0.9%	no record
WN 164 Southwest	LAS 09:35	MDW 14:56	11%	2%	0.6%	no record
WN 2766 Southwest	LAS 15:07	MDW 20:28	13%	3%	0.6%	no record
WN 670 Southwest	LAS 12:23	MDW 17:43	14%	3%	0.6%	no record
WN 4233 Southwest	LAS 16:59	MDW 22:23	15%	3%	0.6%	no record

How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); 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 Wed, Oct 7 (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