Thursday, October 8 · typical odds for a Thursday (too early for a weather forecast) · issued Sun 12:00 PM ET · connections flying that day

Thu, Oct 8: one nonstop, WN 3917 at 14:06, with a 16% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


WN 3917 Southwest	SMF 14:06	HOU 19:57	16%	4%	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 2 h ahead of Sacramento). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	SMF 06:30 → ATL 14:09DL 741	1h 03m Atlanta	ATL 15:12 → HOU 16:22DL 2381	7h 52m	95%	82%
American Details →	SMF 10:59 → DFW 16:39AA 2081	1h 52m Dallas-Fort Worth	DFW 18:31 → HOU 19:48AA 3391 · flown by Envoy	6h 49m	94%	74%
Southwest Details →	SMF 10:36 → LAS 12:08WN 1940	2h 33m Las Vegas	LAS 14:41 → HOU 19:46WN 3524	7h 10m	94%	68%

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 Thu, Oct 8 (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