Schedule: the flights that flew on Tuesday, Nov 3, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 1993 SCHEDULED · TYPICAL SCHEDULE
Today

DL 1993 · IAD → ATL

departs 2:56 PM ET · arrives 4:46 PM ET
Forecast issued Tue 2:00 AM ET · 13h before departure

DL 1993 isn’t flying IAD → ATL today

This listing came from a typical schedule. According to the FAA, DL 1993 flies these legs today: