AA 3818 then AA 2306 at DFW
El Paso → Dallas-Fort Worth → Boston
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
14:36AA 2306 to Boston leaves the gate
22 h 51 apart on the timetable, overnight
AA 2306 leaves 22 h 51 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.