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 3913 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

WN 3913 · STL → DEN

departs 6:40 PM CT · arrives 8:00 PM MT
Forecast issued Wed 4:00 PM ET · 28h before departure

WN 3913 isn’t flying STL → DEN on Thu, Oct 1

This listing came from a typical schedule. According to the FAA, WN 3913 flies these legs that day: