Which service will you likely use?
An UberX car can pick you up in ~1 min.
Distance between Milton Keynes Central and Bletchley Park is approx. 5.68 miles (9.14 km) with 11 min travel time.
This Uber estimate from Milton Keynes Central to Bletchley Park
186 days ago.
Update the estimate to see the real-time fare prices with Uber in Milton Keynes.