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 1159 SCHEDULED · TYPICAL SCHEDULE
Today

DL 1159 · LAS → BOS

departs 11:11 AM PT · arrives 7:11 PM ET
Forecast issued Mon 9:00 PM ET · 7h after departure

DL 1159 isn’t flying LAS → BOS today

This listing came from a typical schedule. According to the FAA, DL 1159 flies these legs today: