FR 2724 then SK 915 at Copenhagen
Krakow → Copenhagen → New York JFK
Timetable, Copenhagen time
15:50FR 2724 from Krakow at the gate
12:55SK 915 to New York JFK leaves the gate
21 h 05 apart on the timetable, overnight
SK 915 leaves 21 h 05 after FR 2724 arrives on the timetable: more than half a day, so not a connection we count.