F9 1475 then AA 849 at DFW
Baltimore → Dallas-Fort Worth → Boston
Timetable, Dallas-Fort Worth time
16:50F9 1475 from Baltimore at the gate
16:33AA 849 to Boston leaves the gate
23 h 43 apart on the timetable, overnight
AA 849 leaves 23 h 43 after F9 1475 arrives on the timetable: more than half a day, so not a connection we count.