Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Yesterday
OO 3821 · DTW → SDF
departs 8:25 AM ET · arrives 9:54 AM ET
OO 3821 isn’t flying DTW → SDF on Thu, Oct 1
This listing came from a typical schedule. According to the FAA, OO 3821 flies these legs that day: