Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: one nonstop, B6 514 at 20:32, with a 31% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


B6 514 JetBlue Flight history →	FLL 20:32	ISP 23:38	31%	13%	2.0%	75%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Islip on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival. Layovers up to 4 hours. Pick a connection for its 12-month details.


Southwest Details →	FLL 12:46 → BWI 15:30WN 3368	1h 29m Baltimore	BWI 16:59 → ISP 18:17WN 1495	5h 31m	99%	76%
JetBlue Details →	FLL 10:00 → MCO 11:08B6 2548	1h 57m Orlando	MCO 13:05 → ISP 15:53B6 546	5h 53m	94%	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 Sun, Oct 11 (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