Hawaiian Airlines will increase the frequency of flights on its Honolulu-Seoul route from 16 July 2012.
The carrier will operate daily instead of four flights a week currently, it said.
"Offering daily flights between Seoul and Honolulu has always been part of our growth plan. Demand among Korean travellers to vacation in Hawaii and for Hawaiian Airlines as a preferred carrier has been steadily building this past year and we are delighted to be expanding our service next July," said the airline's president and CEO Mark Dunkerley.
Hawaiian commenced services to Seoul in January. The additional flights will add more than 40,000 new seats annually, taking the total to more than 96,000 seats yearly.
The airline is now operating Boeing 767-300ER aircraft on the route but will introduce Airbus A330s at a later date, it said.