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 4712 at 08:43 is the safest bet, 6% chance of being 15+ min late; the others run 17–36%.

Safest bet that day AA 4712 BNA 08:43 → JFK 12:19 · 6% chance 15+ min late · usually 83% on time Riskiest B6 1174 BNA 18:23 → JFK 21:50 · 36% chance 15+ min late · usually 72% 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 4712 American flown by Republic Flight history →	BNA 08:43	JFK 12:19	6%	3%	0.8%	83%
B6 1374 JetBlue Flight history →	BNA 11:07	JFK 14:30	17%	7%	1.5%	55%
B6 1174 JetBlue Flight history →	BNA 18:23	JFK 21:50	36%	9%	1.6%	72%
DL 4916 Delta flown by Endeavor no forecast: 12-month record	BNA 07:06	JFK 10:40	13%	8%	4.2%	87%
DL 4919 Delta flown by Endeavor no forecast: 12-month record	BNA 10:00	JFK 13:30	25%	10%	4.4%	75%
DL 4662 Delta flown by Endeavor no forecast: 12-month record	BNA 13:53	JFK 17:39	29%	13%	3.6%	71%
DL 4909 Delta flown by Endeavor no forecast: 12-month record	BNA 18:27	JFK 22:09	31%	19%	8.2%	69%

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