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

Mon, Oct 12: one nonstop, WN 3821 at 10:01, with a 17% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


WN 3821 Southwest	LGB 10:01	BNA 15:53	17%	4%	0.7%	no record

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Nashville on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Nashville is 2 h ahead of Long Beach). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	LGB 13:00 → SLC 15:49DL 1116	2h 56m Salt Lake City	SLC 18:45 → BNA 23:05DL 2317	8h 05m	97%	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 Mon, Oct 12 (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