Blanchflower was voted FWA Footballer of the Year in 1958 and 1961.
He was one of only a handful of players to have been awarded the title of FWA Footballer of the Year on two occasions, winning in both 1958 and 1961. He was one of many signatories in a letter to The Times on 17 July 1958 opposing 'the policy of apartheid' in international sport and defending 'the principle of racial equality which is embodied in the Declaration of the Olympic Games'. On 6 February 1961, he also became the first person to turn down the invitation to appear on This Is Your Life, simply walking away from host Eamonn Andrews. Contrary to belief, this incident was not broadcast live on air, but was being recorded to be shown at the beginning of the live transmission. "I consider this programme to be an invasion of privacy", he explained. "Nobody is going to press gang me into anything."