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 1798 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

DL 1798 · MCI → BOS

departs 12:31 PM CT · arrives 4:48 PM ET
Forecast issued Mon 7:00 PM ET · 18h before departure

DL 1798 isn’t flying MCI → BOS on Tue, Nov 10

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