DL 2305 then AA 2512 at DFW
Boston → Dallas-Fort Worth → Ontario
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
21:41AA 2512 to Ontario leaves the gate
22 h 38 apart on the timetable, overnight
AA 2512 leaves 22 h 38 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.