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 4143 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30 Today

WN 4143 · AUS → LAS

departs 4:35 PM CT · arrives 5:25 PM PT

Forecast issued Wed 4:00 AM ET · 14h before departure

WN 4143 isn’t flying AUS → LAS today

This listing came from a typical schedule. According to the FAA, WN 4143 flies these legs today:

SAT → SAN · 6:03 AM · scheduled
SAT → SAN · 6:12 AM · scheduled