Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 3872 SCHEDULED · TYPICAL SCHEDULE

Thursday, October 1 Tomorrow

WN 3872 · SNA → SMF

departs 6:45 PM PT · arrives 8:10 PM PT

Forecast issued Wed 11:00 AM ET · 35h before departure

WN 3872 isn’t flying SNA → SMF on Thu, Oct 1

This listing came from a typical schedule. According to the FAA, WN 3872 flies these legs that day:

SLC → DEN · 6:10 AM · scheduled