At the 1929 general election, Turton was elected Member of Parliament (MP) for Thirsk and Malton, a seat which he held continuously until his retirement from the House of Commons at the February 1974 general election. Turton was Father of the House from 1965 to 1974. He attributed his election as an MP at the unusually young age of 25 to the death of his predecessor and kinsman Sir Edmund Turton, 1st Baronet three weeks before polling day and the local Conservative association not wanting to waste its "Vote For Turton" posters.