Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 3 nonstops

Wed, Oct 7: UA 2491 at 07:15 is the safest bet, 6% chance of being 15+ min late; the others run 9–16%.

Safest bet that day UA 2491 TPA 07:15 → IAH 08:42 · 6% chance 15+ min late · usually 94% on time Riskiest UA 742 TPA 17:19 → IAH 18:50 · 16% 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.


UA 2491 United Flight history →	TPA 07:15	IAH 08:42	6%	2%	0.8%	94%
UA 1979 United Flight history →	TPA 11:40	IAH 13:21	9%	3%	0.8%	90%
UA 742 United	TPA 17:19	IAH 18:50	16%	5%	0.8%	no record

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