AA 3818 then AA 1206 at DFW
El Paso → Dallas-Fort Worth → Boston
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
08:44AA 1206 to Boston leaves the gate
16 h 59 apart on the timetable, overnight
AA 1206 leaves 16 h 59 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.