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

Fri, Oct 9 looks like a normal day here: all 3 nonstops are 7–13% likely to arrive 15+ min late.

Safest bet that day UA 5453 OKC 05:04 → IAH 06:40 · 7% chance 15+ min late · usually 90% on time Riskiest UA 1127 OKC 07:00 → IAH 08:28 · 13% chance 15+ min late · usually 63% 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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


UA 5453 United flown by SkyWest Flight history →	OKC 05:04	IAH 06:40	7%	5%	0.6%	90%
UA 5531 United flown by SkyWest Flight history →	OKC 13:43	IAH 15:25	13%	7%	0.7%	85%
UA 1127 United Flight history →	OKC 07:00	IAH 08:28	13%	5%	0.8%	63%
UA 3996 United flown by Mesa no forecast: 12-month record	OKC 19:05	IAH 20:48	7%	4%	0.9%	93%
UA 6253 United flown by Mesa no forecast: 12-month record	OKC 17:05	IAH 18:53	16%	5%	0.0%	84%
UA 6255 United flown by Mesa no forecast: 12-month record	OKC 09:39	IAH 11:15	17%	3%	0.0%	83%
UA 6277 United flown by Mesa no forecast: 12-month record	OKC 12:01	IAH 13:37	17%	11%	0.0%	83%
UA 4361 United flown by CommuteAir no forecast: 12-month record	OKC 12:01	IAH 13:38	21%	12%	3.8%	79%
UA 4838 United flown by CommuteAir no forecast: 12-month record	OKC 14:33	IAH 16:10	26%	11%	0.0%	74%

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