Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Yesterday
OO 5420 · ORD → MLI
departs 5:45 PM CT · arrives 6:56 PM CT
OO 5420 isn’t flying ORD → MLI on Sat, Oct 3
This listing came from a typical schedule. According to the FAA, OO 5420 flies these legs that day: