Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 1791 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Today

DL 1791 · ATL → SJU

departs 4:59 PM ET · arrives 8:45 PM AT

Forecast issued Sun 7:00 AM ET · 10h before departure

DL 1791 isn’t flying ATL → SJU today

This listing came from a typical schedule. According to the FAA, DL 1791 flies these legs today:

DTW → LGA · 9:00 AM · scheduled
DTW → LGA · 9:03 AM · in the air
DTW → LGA · 9:00 AM · scheduled