IB 346 then LH 1119 at Madrid
Boston → Madrid → Frankfurt am Main
Timetable, Madrid time
08:45IB 346 from Boston at the gate
08:35LH 1119 to Frankfurt am Main leaves the gate
23 h 50 apart on the timetable, overnight
LH 1119 leaves 23 h 50 after IB 346 arrives on the timetable: more than half a day, so not a connection we count.