B6 387 then AS 1353 at LAX
Boston → Los Angeles → Guatemala City
Timetable, Los Angeles time
00:55B6 387 from Boston at the gate
22:34AS 1353 to Guatemala City leaves the gate
21 h 39 apart on the timetable
AS 1353 leaves 21 h 39 after B6 387 arrives on the timetable: more than half a day, so not a connection we count.