Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · 4 nonstops

Fri, Oct 9: AA 2951 at 08:00 is the safest bet, 9% chance of being 15+ min late; the others run 24%.

Safest bet that day AA 2951 PWM 08:00 → PHL 09:39 · 9% chance 15+ min late · usually 91% on time Riskiest AA 2354 PWM 14:56 → PHL 16:53 · 24% chance 15+ min late · usually 71% on time

Every nonstop on Fri, Oct 9

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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


AA 2951 American Flight history →	PWM 08:00	PHL 09:39	9%	5%	0.7%	91%
AA 2354 American Flight history →	PWM 14:56	PHL 16:53	24%	8%	0.7%	71%
AA 6124 American flown by Piedmont no forecast: 12-month record	PWM 10:56	PHL 12:40	8%	1%	0.9%	92%
AA 6125 American flown by Piedmont no forecast: 12-month record	PWM 18:59	PHL 20:44	19%	9%	7.4%	81%

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 Fri, Oct 9 (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