Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 977 SCHEDULED · TYPICAL SCHEDULE

Wednesday, October 14 Tomorrow

DL 977 · SFO → BOS

departs 12:20 PM PT · arrives 9:02 PM ET

Forecast issued Tue 7:00 AM ET · 32h before departure

DL 977 isn’t flying SFO → BOS on Wed, Oct 14

This listing came from a typical schedule. According to the FAA, DL 977 flies these legs that day:

BOS → SFO · 7:52 AM · scheduled