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 1159 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

DL 1159 · LAS → BOS

departs 11:13 AM PT · arrives 7:17 PM ET
Forecast issued Mon 9:00 PM ET · 17h before departure

DL 1159 isn’t flying LAS → BOS on Tue, Nov 10

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