Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 4 nonstops

Sun, Oct 11: UA 1383 at 06:17 is the safest bet, 14% chance of being 15+ min late; evening flights run 19–33%.

Safest bet that day UA 1383 RDU 06:17 → IAH 08:14 · 14% chance 15+ min late · usually 92% on time Riskiest F9 1741 RDU 18:43 → IAH 20:42 · 33% chance 15+ min late · usually 80% 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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


UA 1383 United Flight history →	RDU 06:17	IAH 08:14	14%	4%	0.9%	92%
UA 2407 United Flight history →	RDU 16:59	IAH 19:05	19%	7%	0.8%	83%
F9 1741 Frontier Flight history →	RDU 18:43	IAH 20:42	33%	10%	1.3%	80%worse than usual
UA 6296 United flown by Mesa no forecast: 12-month record	RDU 12:45	IAH 14:44	11%	2%	1.0%	89%

Alternatives with one stop that day

All connections →


Delta Details →	RDU 05:10 → ATL 06:28DL 1552	1h 02m Atlanta	ATL 07:30 → IAH 08:35DL 1585	4h 25m	95%	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