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 4603 SCHEDULED · TYPICAL SCHEDULE

Thursday, October 1 Tomorrow

WN 4603 · PHX → SFO

departs 9:55 AM MT · arrives 12:00 PM PT

Forecast issued Wed 1:00 PM ET · 24h before departure

WN 4603 isn’t flying PHX → SFO on Thu, Oct 1

This listing came from a typical schedule. According to the FAA, WN 4603 flies these legs that day:

HOU → MCI · 8:10 AM · scheduled