Milton Keynes Central railway station serves Milton Keynes and surrounding parts of Bedfordshire, Buckinghamshire and Northamptonshire. The station is located on the West Coast Main Line about 50 miles northwest of London. The station is served by Avanti West Coast intercity services, and by West Midlands Trains regional servic…Milton Keynes Central railway station serves Milton Keynes and surrounding parts of Bedfordshire, Buckinghamshire and Northamptonshire. The station is located on the West Coast Main Line about 50 miles northwest of London. The station is served by Avanti West Coast intercity services, and by West Midlands Trains regional services.