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 3856 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Today

WN 3856 · DEN → SEA

departs 9:10 PM MT · arrives 11:10 PM PT

Forecast issued Sun 5:00 PM ET · 6h before departure

WN 3856 isn’t flying DEN → SEA today

This listing came from a typical schedule. According to the FAA, WN 3856 flies these legs today:

TPA → IND · 10:00 PM · scheduled