Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

ALLEGIANT · FLIGHT G4 638 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30 Yesterday

G4 638 · BZN → AZA

departs 8:31 PM MT · arrives 9:51 PM MT

Forecast issued Wed 10:00 PM ET · 0h before departure

G4 638 isn’t flying BZN → AZA on Wed, Sep 30

This listing came from a typical schedule. According to the FAA, G4 638 flies these legs that day:

AZA → FSD · 7:20 AM · scheduled