Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Wed 12:00 PM ET · 3 nonstops

Sun, Oct 11: WN 1428 at 11:55 is the safest bet, 14% chance of being 15+ min late; the others run 19–30%.

Safest bet that day WN 1428 HNL 11:55 → ONT 20:13 · 14% chance 15+ min late Riskiest AS 271 HNL 13:04 → ONT 21:16 · 30% chance 15+ min late · usually 77% on time

Every nonstop on Sun, Oct 11

12-month record →

Ranked by the chance of arriving 15+ minutes late (typical odds: the weather this date has had in past years), 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.


WN 1428 Southwest	HNL 11:55	ONT 20:13	14%	4%	0.6%	no record
AS 2749 Alaska	HNL 20:17	ONT 04:48	19%	4%	0.6%	no record
AS 271 Alaska Flight history →	HNL 13:04	ONT 21:16	30%	6%	0.6%	77%

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