Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: one nonstop, WN 1252 at 10:35, with a 7% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


WN 1252 Southwest	CMH 10:35	HOU 12:29	7%	2%	0.6%	no record

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Houston is 1 h behind Columbus). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	CMH 06:00 → ATL 07:35DL 2469	1h 06m Atlanta	ATL 08:41 → HOU 09:45DL 1509	4h 45m	96%	84%
Delta Details →	CMH 07:05 → ATL 08:42DL 2909	2h 23m Atlanta	ATL 11:05 → HOU 12:10DL 1195	6h 05m	98%	81%
Delta Details →	CMH 10:05 → ATL 11:35DL 1479	3h 37m Atlanta	ATL 15:12 → HOU 16:22DL 2381	7h 17m	100%	77%
Delta Details →	CMH 17:06 → ATL 18:45DL 2892	2h 00m Atlanta	ATL 20:45 → HOU 21:51DL 2051	5h 45m	92%	62%
American Details →	CMH 14:42 → DFW 16:30AA 1492	1h 58m Dallas-Fort Worth	DFW 18:28 → HOU 19:48AA 3391 · flown by Envoy	6h 06m	89%	60%

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