Schedule: the flights that flew on Friday, Nov 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 1659 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

DL 1659 · LAS → SLC

departs 1:40 PM PT · arrives 4:03 PM MT
Forecast issued Thu 1:00 PM ET · 28h before departure

DL 1659 isn’t flying LAS → SLC on Fri, Nov 13

This listing came from a typical schedule. According to the FAA, DL 1659 flies these legs that day: