Schedule: the flights that flew on Monday, Nov 2, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Today
DL 1874 · ATL → IAH
departs 1:47 PM ET · arrives 2:56 PM CT
DL 1874 isn’t flying ATL → IAH today
This listing came from a typical schedule. According to the FAA, DL 1874 flies these legs today: