DL 1523 then B6 951 at Boston
Washington National → Boston → Sarasota
Timetable, Boston time
13:34DL 1523 from Washington National at the gate
11:45B6 951 to Sarasota leaves the gate
22 h 11 apart on the timetable, overnight
B6 951 leaves 22 h 11 after DL 1523 arrives on the timetable: more than half a day, so not a connection we count.