OS 680 then FR 729 at Vienna
Krakow → Vienna → London Stansted
Timetable, Vienna time
15:45OS 680 from Krakow at the gate
10:35FR 729 to London Stansted leaves the gate
18 h 50 apart on the timetable, overnight
FR 729 leaves 18 h 50 after OS 680 arrives on the timetable: more than half a day, so not a connection we count.