UA 46 then DE 1668 at Frankfurt
Houston → Frankfurt am Main → Heraklion
Timetable, Frankfurt am Main time
11:40UA 46 from Houston at the gate
09:40DE 1668 to Heraklion leaves the gate
22 h apart on the timetable, overnight
DE 1668 leaves 22 h after UA 46 arrives on the timetable: more than half a day, so not a connection we count.