Finnair JFK Terminal, Finland's flag carrier, offers travelers who fly into and out of John F. Kennedy a hassle-free and efficient journey. New York City's John F. Kennedy International Airport (JFK). Finnair, as a One World Alliance member, offers the best services for passengers traveling between the US and Europe, and seamless connectivity. With modern, environmentally friendly aircraft and Nordic hospitality, Finnair ensures that all business and leisure travelers have a comfortable and pleasant journey.