Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

SOUTHWEST · FLIGHT WN 4239 SCHEDULED · TYPICAL SCHEDULE

Monday, October 5 Tomorrow

WN 4239 · SFO → SAN

departs 8:55 AM PT · arrives 10:35 AM PT

Forecast issued Sun 4:00 PM ET · 20h before departure

WN 4239 isn’t flying SFO → SAN on Mon, Oct 5

This listing came from a typical schedule. According to the FAA, WN 4239 flies these legs that day:

CMH → PHX · 6:10 AM · scheduled