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 3994 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Today

WN 3994 · STS → SAN

departs 4:55 PM PT · arrives 6:35 PM PT

Forecast issued Sun 10:00 AM ET · 10h before departure

WN 3994 isn’t flying STS → SAN today

This listing came from a typical schedule. According to the FAA, WN 3994 flies these legs today:

SNA → LAS · 10:54 AM · scheduled
SNA → LAS · 10:54 AM · scheduled