Wednesday, October 7 · our forecast odds · issued Mon 12:00 AM ET · 4 nonstops

Wed, Oct 7: YX 3689 at 07:10 is the safest bet, 6% chance of being 15+ min late; the others run 10–31%.

Safest bet that day YX 3689 EWR 07:10 → STL 08:50 · 6% chance 15+ min late Riskiest UA 2040 EWR 19:40 → STL 21:18 · 31% chance 15+ min late

Against a calm day 15% average chance a nonstop arrives 15+ min late; 12% for the same flights on a calm-weather day

Every nonstop on Wed, Oct 7

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.


YX 3689 Republic	EWR 07:10	STL 08:50	6%	1%	0.7%	no record
UA 2311 United	EWR 09:54	STL 11:30	10%	3%	0.6%	no record
YX 3717 Republic	EWR 14:29	STL 16:23	11%	3%	0.7%	no record
UA 2040 United	EWR 19:40	STL 21:18	31%	6%	0.7%	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 Wed, Oct 7 (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