John Alcock and Arthur Brown were British aviators who, in 1919, made the first non-stop transatlantic flight. They flew a modified First World War Vickers Vimy bomber from St. John's, Newfoundland, to Clifden, County Galway, Ireland. The Secretary of State for Air, Winston Churchill, presented them with the Daily Mail prize for the first crossing of the Atlantic Ocean by aeroplane in "less than 72 consecutive hours". A small amount of mail was carried on the flight, making it the first transatlantic airmail flight. The two aviators were awarded the honour of Knight Commander of the Most Excellent Order of the British Empire (KBE) by King George V at Windsor Castle a week later.

Between 1906 and 1930, the Daily Mail newspaper, initially on the initiative of its proprietor, Alfred Harmsworth, 1st Viscount Northcliffe, awarded numerous prizes for achievements in aviation. The newspaper would stipulate the amount of a prize for the first aviators to perform a particular task in aviation or to the winner of an aviation race or event. The most famous prizes were the £1,000 for the first cross-channel flight awarded to Louis Blériot in 1909 and the £10,000 given in 1919 to Alcock and Brown for the first non-stop transatlantic flight between North America and Ireland.