Schedule: the flights that flew on Wednesday, Nov 4, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Today
DL 1787 · DTW → IAD
departs 3:08 PM ET · arrives 4:41 PM ET
DL 1787 isn’t flying DTW → IAD today
This listing came from a typical schedule. According to the FAA, DL 1787 flies these legs today: