Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 8:00 PM ET · 3 nonstops

Sat, Oct 10: WN 4041 at 08:36 is the safest bet, 14% chance of being 15+ min late; the others run 31–36%.

Safest bet that day WN 4041 LAS 08:36 → MSY 14:05 · 14% chance 15+ min late Riskiest WN 353 LAS 17:36 → MSY 23:05 · 36% chance 15+ min late

Every nonstop on Sat, Oct 10

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 4041 Southwest	LAS 08:36	MSY 14:05	14%	2%	0.6%	no record
WN 4564 Southwest	LAS 13:51	MSY 19:20	31%	6%	0.7%	no record
WN 353 Southwest	LAS 17:36	MSY 23:05	36%	10%	1.0%	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 Sat, Oct 10 (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