Wednesday, October 7 · our forecast odds · issued Mon 4:00 AM ET · connections flying that day

Wed, Oct 7: one nonstop, WN 570 at 20:54, with a 13% chance of arriving 15+ min late.

Nonstops that day


WN 570 Southwest Flight history →	HOU 20:54	ONT 22:18	13%	3%	0.6%	85%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Ontario on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Ontario is 2 h behind Houston). Layovers up to 4 hours. Pick a connection for its 12-month details.


Southwest Details →	HOU 07:00 → DAL 08:10WN 4	3h 24m Dallas	DAL 11:34 → ONT 12:50WN 1223	7h 50m	100%	93%
American Details →	HOU 09:40 → DFW 11:08AA 4036 · flown by Envoy	1h 00m Dallas-Fort Worth	DFW 12:08 → ONT 13:32AA 2635	5h 52m	92%	82%
Delta Details →	HOU 14:23 → ATL 17:34DL 1195	1h 27m Atlanta	ATL 19:01 → ONT 20:49DL 2891	8h 26m	93%	78%

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 Wed, Oct 7 (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