Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 4129 SCHEDULED · TYPICAL SCHEDULE

Tuesday, September 29 Yesterday

WN 4129 · DAL → PHX

departs 2:30 PM CT · arrives 2:55 PM MT

Forecast issued Tue 10:00 PM ET · 6h after departure

WN 4129 isn’t flying DAL → PHX on Tue, Sep 29

This listing came from a typical schedule. According to the FAA, WN 4129 flies these legs that day:

DCA → MDW · 12:16 PM · landed
DCA → MDW · 12:23 PM · scheduled