Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 7 nonstops

Sun, Oct 11: MQ 3651 at 05:57 is the safest bet, 11% chance of being 15+ min late; the others run 22–50%.

Safest bet that day MQ 3651 CHA 05:57 → ORD 06:59 · 11% chance 15+ min late Riskiest MQ 3901 CHA 17:08 → ORD 18:15 · 50% chance 15+ min late

Every nonstop on Sun, Oct 11

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


MQ 3651 Envoy	CHA 05:57	ORD 06:59	11%	4%	1.6%	no record
OO 4680 SkyWest	CHA 10:18	ORD 11:20	22%	8%	2.1%	no record
MQ 3901 Envoy	CHA 17:08	ORD 18:15	50%	19%	4.3%	no record
UA 4540 United flown by GoJet no forecast: 12-month record	CHA 06:00	ORD 06:59	14%	5%	0.0%	86%
UA 4407 United flown by GoJet no forecast: 12-month record	CHA 10:27	ORD 11:29	20%	9%	1.3%	80%
UA 4571 United flown by GoJet no forecast: 12-month record	CHA 13:53	ORD 14:55	31%	9%	2.8%	69%
UA 4434 United flown by GoJet no forecast: 12-month record	CHA 19:07	ORD 20:12	33%	7%	12.9%	67%

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 Sun, Oct 11 (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