Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 12:00 AM ET · 3 nonstops

Sat, Oct 10 looks like a normal day here: all 3 nonstops are 9–16% likely to arrive 15+ min late.

Safest bet that day UA 2491 TPA 07:00 → IAH 08:23 · 9% chance 15+ min late · usually 94% on time Riskiest UA 742 TPA 17:17 → IAH 18:57 · 16% chance 15+ min late

Every nonstop on Sat, Oct 10

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 07:00	IAH 08:23	9%	4%	7.2%	94%
UA 1979 United Flight history →	TPA 11:38	IAH 13:18	11%	4%	3.8%	90%
UA 742 United	TPA 17:17	IAH 18:57	16%	7%	3.2%	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 Sat, Oct 10 (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