Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 3872 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30 Today

WN 3872 · SNA → SMF

departs 6:50 PM PT · arrives 8:15 PM PT

Forecast issued Wed 1:00 PM ET · 9h before departure

WN 3872 isn’t flying SNA → SMF today

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

SLC → DEN · 6:10 AM · scheduled