DL 763 then AS 1637 at LAX
Atlanta → Los Angeles → Guatemala City
Timetable, Los Angeles time
19:55DL 763 from Atlanta at the gate
17:17AS 1637 to Guatemala City leaves the gate
21 h 22 apart on the timetable, overnight
AS 1637 leaves 21 h 22 after DL 763 arrives on the timetable: more than half a day, so not a connection we count.