Tuesday, October 6 · our forecast odds · issued Mon 1:00 PM ET · 3 nonstops

Tomorrow looks like a normal day here: all 3 nonstops are 16–23% likely to arrive 15+ min late.

Safest bet that day AS 1330 SEA 20:16 → STS 22:06 · 16% chance 15+ min late Riskiest AS 1347 SEA 10:59 → STS 12:58 · 23% chance 15+ min late

Against a calm day 19% average chance a nonstop arrives 15+ min late; 14% for the same flights on a calm-weather day

Every nonstop on Tue, Oct 6

12-month record →

Ranked by the chance of arriving 15+ minutes late, with each flight’s on-time record over Aug 2025 – Jul 2026 beside it. Times are local. Pick a flight for its forecast. Click a column to sort.


AS 1330 Alaska	SEA 20:16	STS 22:06	16%	3%	0.9%	no record
AS 1321 Alaska Flight history →	SEA 11:31	STS 13:34	20%	4%	0.9%	83%
AS 1347 Alaska	SEA 10:59	STS 12:58	23%	5%	1.0%	no record

How these are worked out. Each flight’s odds are our forecast for that day; 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 Tue, Oct 6 (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