As per the maps on internet, the distance between Cambridge to Luton is about 39 miles. The estimated time it will take to cover this distance is approximately 1 hour and 20 minutes, depending upon the speed of driving. On your way to Luton you will pass through some of these well known locations: Alma Street, Inkerman Street, Crawley Green Road, Vauxhall Way, Peterborough, Baldock /Letchworth, Trumpington Road, Etc.