LX 53 then WK 438 at Zurich
Boston → Zurich → Split
Timetable, Zurich time
11:10LX 53 from Boston at the gate
07:00WK 438 to Split leaves the gate
19 h 50 apart on the timetable, overnight
WK 438 leaves 19 h 50 after LX 53 arrives on the timetable: more than half a day, so not a connection we count.