Thursday, October 8 · typical odds for a Thursday (too early for a weather forecast) · issued Sun 12:00 PM ET · connections flying that day

Thu, Oct 8: Alaska via Seattle, leaving 11:28, is the safest bet: 67% chance of reaching Denver on time.

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Denver 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.


Alaska Details →	FCA 11:28 → SEA 12:05AS 2207 · flown by Horizon	2h 17m Seattle	SEA 14:22 → DEN 17:55AS 602	6h 27m	97%	67%
Alaska Details →	FCA 13:10 → PDX 13:49AS 2283 · flown by Horizon	58m Portland	PDX 14:47 → DEN 18:16AS 1346	5h 06m	92%	65%

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 Thu, Oct 8 (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