From East Ham Underground Station Tube to King's Cross St. Pancras Underground Station, Tube to London Euston, then train to Milton Keynes Central. 1 h 15 min £36. From East Ham Underground Station Tube to Farringdon, 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 18 min £23. From East Ham drive to Milton Keynes. 1 h 9 min £12.