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.

DELTA · FLIGHT DL 1798 SCHEDULED · TYPICAL SCHEDULE
Today

DL 1798 · MCI → BOS

departs 12:30 PM CT · arrives 4:47 PM ET
Forecast issued Mon 7:00 PM ET · 6h after departure

DL 1798 isn’t flying MCI → BOS today

This listing came from a typical schedule. According to the FAA, DL 1798 flies these legs today: