sentences: [2] The first transatlantic proving flights were operated on 5 July 1937 with a Pan Am Sikorsky S-42 service from Botwood, Newfoundland and Labrador on the Bay of Exploits and a BOAC Short Empire service from Foynes with successful transits of twelve and fifteen-and-a-quarter hours respectively.Services to New York, Southampton, Montreal, Poole and Lisbon followed, the first non-stop New York service operating on 22 June 1942 in 25 hours 40 minutes.