DL 675 then WN 3347 at Boston
Kansas City → Boston → Austin
Timetable, Boston time
17:39DL 675 from Kansas City at the gate
15:10WN 3347 to Austin leaves the gate
21 h 31 apart on the timetable, overnight
WN 3347 leaves 21 h 31 after DL 675 arrives on the timetable: more than half a day, so not a connection we count.