DL 2305 then AA 1273 at DFW
Boston → Dallas-Fort Worth → Reno
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
21:59AA 1273 to Reno leaves the gate
22 h 56 apart on the timetable, overnight
AA 1273 leaves 22 h 56 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.