WK 439 then UA 53 at Zurich
Split → Zurich → Washington
Timetable, Zurich time
16:50WK 439 from Split at the gate
11:45UA 53 to Washington leaves the gate
18 h 55 apart on the timetable, overnight
UA 53 leaves 18 h 55 after WK 439 arrives on the timetable: more than half a day, so not a connection we count.