Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · 7 nonstops

Fri, Oct 9: AA 4710 at 14:39 is the safest bet, 12% chance of being 15+ min late; the others run 14–24%.

Safest bet that day AA 4710 JFK 14:39 → BNA 16:21 · 12% chance 15+ min late · usually 75% on time Riskiest B6 1173 JFK 15:54 → BNA 17:33 · 24% chance 15+ min late · usually 76% 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 4710 American flown by Republic Flight history →	JFK 14:39	BNA 16:21	12%	4%	0.8%	75%
B6 1373 JetBlue Flight history →	JFK 08:32	BNA 10:02	14%	4%	0.9%	70%
B6 1173 JetBlue Flight history →	JFK 15:54	BNA 17:33	24%	9%	0.9%	76%
DL 4919 Delta flown by Endeavor no forecast: 12-month record	JFK 07:44	BNA 09:20	17%	5%	2.6%	83%
DL 4908 Delta flown by Endeavor no forecast: 12-month record	JFK 20:00	BNA 22:05	26%	14%	7.8%	74%
DL 4909 Delta flown by Endeavor no forecast: 12-month record	JFK 15:50	BNA 17:47	26%	12%	5.8%	74%
DL 4662 Delta flown by Endeavor no forecast: 12-month record	JFK 11:30	BNA 13:13	27%	11%	4.8%	73%

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