Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 3 nonstops

Wed, Oct 7: AA 1716 at 05:18 is the safest bet, 5% chance of being 15+ min late; the others run 11–21%.

Safest bet that day AA 1716 STL 05:18 → MIA 09:15 · 5% chance 15+ min late · usually 96% on time Riskiest MQ 3851 STL 17:17 → MIA 21:19 · 21% 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.


AA 1716 American Flight history →	STL 05:18	MIA 09:15	5%	2%	0.8%	96%
WN 4591 Southwest	STL 11:37	MIA 15:19	11%	3%	0.6%	no record
MQ 3851 Envoy	STL 17:17	MIA 21:19	21%	9%	1.3%	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