From Gatwick Airport train to Reading then train to Cardiff Central. 3hrs 27min £79. From Gatwick Airport London bus to Cardiff Coach Station. 4hrs 47min £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 £37. From London Gatwick airport fly to Cardiff airport then bus to Cardiff. 4hrs 05min £80. From London Gatwick airport fly to Bristol airport, bus to Bristol Temple Meads, then train to Cardiff. 5hrs 14min £105.