National Airlines will begin scheduled passenger service between MacArthur Airport and Puerto Rico this summer:

http://www.newsday.com/long-island/t...hts-1.11565230

Long Island MacArthur Airport and National Airlines have reached agreement on the airline’s plans to begin offering flights to Puerto Rico, an Islip Town spokeswoman said Friday.
The Orlando-based airline is now “officially a partner” with MacArthur, which is owned and operated by the town, spokeswoman Caroline Smith said in an email.
National will fly six weekly nonstop roundtrips to Puerto Rico, four to San Juan and two to Aguadilla, departing ISP in the morning and returning later in the day. Service will start June 1 and National will operate a 757 on the route.