Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 9 nonstops

Wed, Oct 7: UA 1525 at 07:27 is the safest bet, 7% chance of being 15+ min late; the others run 9–35%.

Safest bet that day UA 1525 RDU 07:27 → EWR 09:02 · 7% chance 15+ min late · usually 93% on time Riskiest UA 2816 RDU 18:24 → EWR 20:07 · 35% chance 15+ min late

Every nonstop on Wed, Oct 7

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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


UA 1525 United Flight history →	RDU 07:27	EWR 09:02	7%	3%	1.5%	93%
UA 1669 United	RDU 08:57	EWR 10:41	9%	4%	1.4%	no record
YX 3404 Republic	RDU 11:50	EWR 13:45	19%	6%	2.1%	no record
UA 407 United	RDU 14:01	EWR 15:36	29%	14%	1.0%	no record
UA 1844 United	RDU 14:55	EWR 16:37	30%	13%	1.1%	no record
UA 2816 United	RDU 18:24	EWR 20:07	35%	14%	1.1%	no record
DL 5120 Delta flown by Endeavor no forecast: 12-month record	RDU 07:05	EWR 08:59	11%	4%	3.2%	89%
DL 5273 Delta flown by Endeavor no forecast: 12-month record	RDU 11:35	EWR 13:23	27%	10%	3.0%	73%
DL 5222 Delta flown by Endeavor no forecast: 12-month record	RDU 17:00	EWR 18:49	42%	21%	9.2%	58%

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 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