Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · 4 nonstops

Fri, Oct 9: UA 3626 at 08:00 is the safest bet, 7% chance of being 15+ min late; evening flights run 18–19%.

Safest bet that day UA 3626 EWR 08:00 → ORF 09:33 · 7% chance 15+ min late · usually 95% on time Riskiest UA 3439 EWR 19:59 → ORF 21:42 · 19% chance 15+ min late · usually 78% 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 3626 United flown by Republic Flight history →	EWR 08:00	ORF 09:33	7%	2%	1.4%	95%
UA 3603 United flown by Republic Flight history →	EWR 15:30	ORF 17:03	15%	3%	1.4%	82%
UA 3478 United flown by Republic Flight history →	EWR 17:40	ORF 19:22	18%	5%	1.7%	83%
UA 3439 United flown by Republic Flight history →	EWR 19:59	ORF 21:42	19%	5%	2.3%	78%

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