Today looks like a normal day here: all 3 nonstops are 28–37% likely to arrive 15+ min late.

Safest bet today OO 4642 IAH 12:27 → SGF 14:13 · 28% chance 15+ min late Riskiest OO 5211 IAH 18:54 → SGF 20:55 · 37% chance 15+ min late

Against a calm day 32% average chance a nonstop arrives 15+ min late; 23% for the same flights on a calm-weather day

Every nonstop today

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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


OO 4642 SkyWest	IAH 12:27	SGF 14:13	28%	11%	0.6%	no record
OO 5274 SkyWest	IAH 16:47	SGF 18:33	33%	13%	0.9%	no record
OO 5211 SkyWest	IAH 18:54	SGF 20:55	37%	13%	0.9%	no record
UA 4569 United flown by GoJet no forecast: 12-month record	IAH 12:25	SGF 14:15	13%	3%	0.0%	87%
UA 4911 United flown by CommuteAir no forecast: 12-month record	IAH 14:30	SGF 16:20	21%	8%	1.4%	79%
UA 4867 United flown by CommuteAir no forecast: 12-month record	IAH 16:50	SGF 18:43	24%	7%	0.5%	76%
UA 4370 United flown by CommuteAir no forecast: 12-month record	IAH 12:25	SGF 14:18	45%	15%	0.0%	55%

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