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
UA 1998 · IAD → EWR
departs 6:41 AM ET · arrives 8:07 AM ET
UA 1998 isn’t flying IAD → EWR today
This listing came from a typical schedule. According to the FAA, UA 1998 flies these legs today: