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: Alaska via Portland, leaving 13:10, is the safest bet: 77% chance of reaching Los Angeles on time.

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Los Angeles on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Los Angeles is 1 h behind Kalispell). Layovers up to 4 hours. Pick a connection for its 12-month details.


Alaska Details →	FCA 13:10 → PDX 13:49AS 2283 · flown by Horizon	3h 48m Portland	PDX 17:37 → LAX 20:09AS 278	7h 59m	100%	77%
Alaska Details →	FCA 06:33 → SEA 07:05AS 2122 · flown by Horizon	1h 17m Seattle	SEA 08:22 → LAX 10:59AS 1414	5h 26m	97%	70%
Alaska Details →	FCA 11:28 → SEA 12:05AS 2207 · flown by Horizon	3h 54m Seattle	SEA 15:59 → LAX 18:44AS 1300	8h 16m	100%	69%
Alaska Details →	FCA 16:34 → SEA 17:12AS 2110 · flown by Horizon	3h 57m Seattle	SEA 21:09 → LAX 23:52AS 524	8h 18m	100%	67%

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