FR 1799 then TP 1358 at Lisbon
Toulouse → Lisbon → London Heathrow
Timetable, Lisbon time
23:55FR 1799 from Toulouse at the gate
18:45TP 1358 to London Heathrow leaves the gate
18 h 50 apart on the timetable, overnight
TP 1358 leaves 18 h 50 after FR 1799 arrives on the timetable: more than half a day, so not a connection we count.