From Gatwick Airport train to Reading then train to Cardiff Central. 3hrs 25min £78. From Gatwick Airport London bus to Cardiff Coach Station. 4hrs 46min £116. From Gatwick Airport, South Terminal Coach Station line 201 bus to Cardiff, Sophia Gardens. 4hrs 50min £42. From London Gatwick Airport (LGW) drive to Cardiff. 2hrs 48min £39. From London Gatwick airport fly to Bristol airport, bus to Bristol Temple Meads, then train to Cardiff. 5hrs 12min £134. From Gatwick Airport train to London Bridge Underground Station, Tube to Canning Town DLR Station, train to London City airport, fly to Cardiff airport, then bus to Cardiff. 3hrs 29min £105.