Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

SOUTHWEST · FLIGHT WN 4556 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Today

WN 4556 · STL → LAX

departs 10:50 PM CT · arrives 12:45 AM PT

Forecast issued Sun 3:00 PM ET · 9h before departure

WN 4556 isn’t flying STL → LAX today

This listing came from a typical schedule. According to the FAA, WN 4556 flies these legs today:

DCA → DAL · 8:20 PM · scheduled
DAL → SAN · 11:05 PM · scheduled