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

DELTA · FLIGHT DL 1877 SCHEDULED · TYPICAL SCHEDULE

Tuesday, October 13 Tomorrow

DL 1877 · SJU → JFK

departs 1:16 PM AT · arrives 5:03 PM ET

Forecast issued Mon 11:00 AM ET · 26h before departure

DL 1877 isn’t flying SJU → JFK on Tue, Oct 13

This listing came from a typical schedule. According to the FAA, DL 1877 flies these legs that day:

JFK → SJU · 8:09 AM · scheduled