VS 22 then IB 726 at Heathrow
Washington → London → Madrid
Timetable, London time
07:20VS 22 from Washington at the gate
19:40IB 726 to Madrid leaves the gate
12 h 20 apart on the timetable
IB 726 leaves 12 h 20 after VS 22 arrives on the timetable: more than half a day, so not a connection we count.