Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 3 nonstops

Sun, Oct 11: WN 351 at 08:25 is the safest bet, 11% chance of being 15+ min late; the others run 23–28%.

Safest bet that day WN 351 STL 08:25 → AUS 10:40 · 11% chance 15+ min late Riskiest WN 2706 STL 22:53 → AUS 01:07 · 28% chance 15+ min late

Every nonstop on Sun, Oct 11

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 351 Southwest	STL 08:25	AUS 10:40	11%	3%	2.2%	no record
WN 2786 Southwest Flight history →	STL 14:25	AUS 16:40	23%	7%	0.7%	88%worse than usual
WN 2706 Southwest	STL 22:53	AUS 01:07	28%	10%	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 Sun, Oct 11 (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