DL 2305 then AA 3916 at DFW
Boston → Dallas-Fort Worth → Monterrey
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
21:56AA 3916 to Monterrey leaves the gate
22 h 53 apart on the timetable, overnight
AA 3916 leaves 22 h 53 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.