Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 4256 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30 Today

WN 4256 · COS → PHX

departs 7:25 AM MT · arrives 8:15 AM MT

Forecast issued Wed 6:00 AM ET · 3h before departure

WN 4256 isn’t flying COS → PHX today

This listing came from a typical schedule. According to the FAA, WN 4256 flies these legs today:

DAL → BWI · 6:49 AM · scheduled
DAL → BWI · 6:59 AM · scheduled