Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · connections flying that day

Fri, Oct 9: Delta via Salt Lake City, leaving 07:15, is the safest bet: 82% chance of reaching Long Beach on time.

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Long Beach on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Long Beach is 3 h behind Dulles). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	IAD 07:15 → SLC 09:54DL 432	1h 11m Salt Lake City	SLC 11:05 → LGB 11:59DL 1116	7h 44m	95%	82%

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