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

Mon, Oct 12: UA 2643 at 10:12 is the safest bet, 14% chance of being 15+ min late; the others run 33–34%.

Safest bet that day UA 2643 DEN 10:12 → BDL 16:15 · 14% chance 15+ min late · usually 88% on time Riskiest WN 2672 DEN 13:04 → BDL 18:31 · 34% chance 15+ min late

Every nonstop on Mon, Oct 12

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 2643 United Flight history →	DEN 10:12	BDL 16:15	14%	4%	0.7%	88%
UA 2254 United Flight history →	DEN 17:53	BDL 23:44	33%	11%	0.8%	74%
WN 2672 Southwest	DEN 13:04	BDL 18:31	34%	6%	0.9%	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 Mon, Oct 12 (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