Schedule: the flights that flew on Tuesday, Oct 20, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Today
YX 3507 · SDF → ORD
departs 5:21 AM ET · arrives 6:08 AM CT
YX 3507 isn’t flying SDF → ORD today
This listing came from a typical schedule. According to the FAA, YX 3507 flies these legs today: