At the same time, the state's other major airports added overseas service. United Airlines commenced service to Kahului Airport on January 5, 1983, followed by service to Kona International Airport on September 7 and finally to Līhue Airport in August 1984. Hilo struggled to attract another overseas air carrier. Meantime, in the summer of 1983 there were three airlines operating nonstop service on the interisland route between Hilo and Honolulu including Aloha Airlines with Boeing 737-200 jets, Hawaiian Airlines with McDonnell Douglas DC-9-50 jets and de Havilland Canada DHC-7 Dash 7 turboprops, and Mid Pacific Air with NAMC YS-11 turboprops with the three air carriers operating a combined total of seventeen daily nonstop flights at this time from Hilo to Honolulu according to the OAG. Mid Pacific Air later introduced Fokker F28 Fellowship jets on its nonstop flights to Honolulu.