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 4637 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Today

WN 4637 · MDW → LAX

departs 5:25 AM CT · arrives 7:40 AM PT

Forecast issued Sun 12:00 PM ET · 6h after departure

WN 4637 isn’t flying MDW → LAX today

This listing came from a typical schedule. According to the FAA, WN 4637 flies these legs today:

HOU → BNA · 2:49 PM · scheduled
HOU → BNA · 3:23 PM · landed
HOU → BNA · 2:30 PM · scheduled
HOU → BNA · 2:34 PM · scheduled