Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · 5 nonstops

Fri, Oct 9: AA 4564 at 06:00 is the safest bet, 6% chance of being 15+ min late; evening flights run 21–22%.

Safest bet that day AA 4564 MEM 06:00 → LGA 09:48 · 6% chance 15+ min late · usually 87% on time Riskiest AA 4461 MEM 16:26 → LGA 20:14 · 22% chance 15+ min late · usually 59% 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 4564 American flown by Republic Flight history →	MEM 06:00	LGA 09:48	6%	2%	1.0%	87%
DL 5711 Delta flown by Republic Flight history →	MEM 07:05	LGA 10:56	8%	2%	1.0%	92%
DL 5779 Delta flown by Republic Flight history →	MEM 17:30	LGA 21:25	21%	8%	1.1%	81%
AA 4461 American flown by Republic Flight history →	MEM 16:26	LGA 20:14	22%	9%	1.2%	59%
DL 4903 Delta flown by Endeavor no forecast: 12-month record	MEM 11:16	LGA 15:07	25%	8%	7.6%	75%

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