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Monday, October 5 · our forecast odds · issued Sun 11:00 AM ET · 12 nonstops

Tomorrow: UA 1966 at 07:25 is the safest bet, 9% chance of being 15+ min late; evening flights run 19–29%.

Safest bet that day UA 1966 IAH 07:25 → MIA 11:12 · 9% chance 15+ min late · usually 89% on time Riskiest AA 1931 IAH 18:12 → MIA 21:50 · 29% chance 15+ min late · usually 42% on time
Against a calm day 18% average chance a nonstop arrives 15+ min late; 15% for the same flights on a calm-weather day

Every nonstop on Mon, Oct 5

12-month record →

Ranked by the chance of arriving 15+ minutes late, 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 1966 United Flight history → IAH 07:25 MIA 11:12 9% 3% 0.6% 89%
AA 2144 American Flight history → IAH 05:52 MIA 09:24 9% 3% 1.8% 93%
AA 1047 American Flight history → IAH 05:10 MIA 08:51 9% 3% 1.9% 91%
UA 2753 United IAH 07:51 MIA 11:35 11% 4% 0.6% no record
UA 410 United Flight history → IAH 12:00 MIA 15:47 16% 5% 0.6% 84%
AA 1347 American Flight history → IAH 07:35 MIA 11:20 16% 4% 1.3% 87%
UA 2740 United Flight history → IAH 16:50 MIA 20:33 19% 6% 0.6% 75%
AA 603 American Flight history → IAH 09:40 MIA 13:22 20% 5% 1.3% 75%
AA 3100 American IAH 09:48 MIA 13:22 22% 5% 1.3% no record
AA 1918 American Flight history → IAH 11:20 MIA 15:01 24% 6% 1.3% 57%
F9 1068 Frontier Flight history → IAH 20:37 MIA 00:31 26% 14% 1.2% 67%
AA 1931 American Flight history → IAH 18:12 MIA 21:50 29% 6% 1.6% 42%
How these are worked out. Each flight’s odds are our forecast for that day; 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 5 (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