X3 2139 then DE 4000 at Frankfurt
Fuerteventura → Frankfurt am Main → Berlin
Timetable, Frankfurt am Main time
23:05X3 2139 from Fuerteventura at the gate
20:15DE 4000 to Berlin leaves the gate
21 h 10 apart on the timetable, overnight
DE 4000 leaves 21 h 10 after X3 2139 arrives on the timetable: more than half a day, so not a connection we count.