KL 3379 then IB 811 at Madrid
Lanzarote → Madrid → Prague
Timetable, Madrid time
21:00KL 3379 from Lanzarote at the gatealso AF 4837, DL 6773, AM 6823, EY 7580, UX 9076
16:00IB 811 to Prague leaves the gatealso AT 5325, LA 5435, VY 5449, AA 8564
19 h apart on the timetable, overnight
IB 811 leaves 19 h after KL 3379 arrives on the timetable: more than half a day, so not a connection we count.