Turkish Airlines to Increase Service Between NYC and Istanbul CheapOair Staff January 11, 2011 general Turkish Airlines has announced that it will increase service between New York City’s JFK Airport and Istanbul’s Ataturk Airport beginning in March 2011. Between March 23 and April 25, the airline will add a second daily flight between the two cities every Monday, Wednesday, and Friday. From April 26 to October 28, travelers can choose from two non-stop flights to/from New York every day. The new flights will open up a wide range of international connections for passengers at both airports.