Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
WN 4421 · ONT → PHX
departs 8:00 AM PT · arrives 9:15 AM MT
WN 4421 isn’t flying ONT → PHX on Fri, Oct 2
This listing came from a typical schedule. According to the FAA, WN 4421 flies these legs that day: