KL 3379 then IB 379 at Madrid
Lanzarote → Madrid → San Juan
Timetable, Madrid time
21:00KL 3379 from Lanzarote at the gatealso AF 4837, DL 6773, AM 6823, EY 7580, UX 9076
16:00IB 379 to San Juan leaves the gate
19 h apart on the timetable, overnight
IB 379 leaves 19 h after KL 3379 arrives on the timetable: more than half a day, so not a connection we count.