Monday, October 12 · typical odds for a Monday (too early for a weather forecast) · issued Tue 12:00 AM ET · 8 nonstops

Mon, Oct 12: UA 491 at 07:30 is the safest bet, 11% chance of being 15+ min late; evening flights run 17–24%.

Safest bet that day UA 491 IAH 07:30 → MSY 08:46 · 11% chance 15+ min late · usually 92% on time Riskiest UA 2140 IAH 19:02 → MSY 20:24 · 24% chance 15+ min late · usually 76% on time

Every nonstop on Mon, Oct 12

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 491 United Flight history →	IAH 07:30	MSY 08:46	11%	3%	0.7%	92%
UA 575 United Flight history →	IAH 09:45	MSY 11:01	17%	4%	0.7%	79%
OO 4786 SkyWest	IAH 21:50	MSY 23:19	17%	7%	0.9%	no record
UA 2385 United Flight history →	IAH 11:55	MSY 13:14	18%	5%	0.7%	86%
UA 2738 United	IAH 15:01	MSY 16:32	18%	7%	0.7%	no record
YV 6284 Mesa	IAH 16:43	MSY 18:06	20%	7%	1.5%	no record
UA 2161 United	IAH 20:21	MSY 21:56	21%	9%	0.7%	no record
UA 2140 United Flight history →	IAH 19:02	MSY 20:24	24%	9%	0.8%	76%

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 Mon, Oct 12 (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