BA 1349 then BA 191 at Heathrow
Saint Helier → London → Austin
Timetable, London time
16:20BA 1349 from Saint Helier at the gate
12:10BA 191 to Austin leaves the gate
19 h 50 apart on the timetable, overnight
BA 191 leaves 19 h 50 after BA 1349 arrives on the timetable: more than half a day, so not a connection we count.