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 514 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

DL 514 · PHX → BOS

departs 1:15 PM MT · arrives 8:21 PM ET
Forecast issued Mon 9:00 AM ET · 30h before departure

DL 514 isn’t flying PHX → BOS on Tue, Nov 10

This listing came from a typical schedule. According to the FAA, DL 514 flies these legs that day: