Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · 3 nonstops

Fri, Oct 9: UA 335 at 06:00 is the safest bet, 6% chance of being 15+ min late; the others run 34–36%.

Safest bet that day UA 335 EUG 06:00 → SFO 07:35 · 6% chance 15+ min late · usually 95% on time Riskiest UA 4662 EUG 18:49 → SFO 20:36 · 36% chance 15+ min late · usually 25% on time

Every nonstop on Fri, Oct 9

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.


UA 335 United Flight history →	EUG 06:00	SFO 07:35	6%	3%	0.8%	95%
UA 2077 United Flight history →	EUG 13:59	SFO 15:35	34%	14%	0.8%	58%
UA 4662 United flown by SkyWest Flight history →	EUG 18:49	SFO 20:36	36%	20%	2.2%	25%

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