From Gatwick Airport train to Victoria Underground Station, Tube to London Euston, then train to Milton Keynes Central. 1 h 17 min £63. From Gatwick Airport train to Luton Station Interchange (Luton Railway Station) then line 99 bus to Central Milton Keynes, The Point (Central Milton Keynes The Point H4). 2 h 33 min £30. From London Gatwick Airport (LGW) drive to Milton Keynes. 1 h 33 min £18. From London Gatwick Airport towncar to Milton Keynes. 1 h 33 min £208.