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.

DELTA · FLIGHT DL 1514 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

DL 1514 · MIA → JFK

departs 3:17 PM ET · arrives 6:50 PM ET
Forecast issued Tue 11:00 AM ET · 28h before departure

DL 1514 isn’t flying MIA → JFK on Wed, Nov 11

This listing came from a typical schedule. According to the FAA, DL 1514 flies these legs that day: