From Gatwick Airport train to Reading then train to Winchester. 2hrs 21min £44. From South Terminal Bus Station bus to Heathrow Airport Terminal 5, Heathrow Terminal 5 then line 203 bus to Winchester, Broadway Guildhall. 3hrs 10min £17. From Gatwick Airport, Gatwick South Terminal bus to Reigate, Bell Street (Bell Street Q), line 32 bus to Friary Bus Station, line 65 bus to Alton, Station, then line 64 bus to Winchester, Bus Station. 5hrs 07min £17. From London Gatwick drive to Winchester. 1hrs 20min £15.