interisland

in·ter·is·land

 (ĭn′tər-ī′lənd)
adj.
Relating to, involving, or connecting two or more islands: interisland competition; interisland ferries.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

interisland

(ˌɪntərˈaɪlənd)
adj
operating or existing between two or more islands
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
With over 20 typhoons whipping the country every year and with the Philippines being an archipelago with interisland ships regularly plying its waters, shouldn't maritime safety be a perfected art in these parts by now?
Hawaii-based low-cost interisland air carrier Mokulele Airlines said that it has purchased two new Cessna Grand Caravan (NYSE: TXT) aircraft.
This month, GST Telecom plans to lay a $55 million bet in the form of an interisland fiber optic network.
The planes would allow PAL to expand its interisland domestic operations.
Hawaii, USA-based low-cost interisland air carrier Mokulele Airlines said has launched special holiday fares of USD 39 per person one way for travel on the 2012 holiday dates of December 24, 25, 30 and 31, and New Year's Day, January 1.
Later, the ex-Marine established three companies: Uaukewai (whose tugs and workboats service oil tankers) in 1971, Marine Logistics (which cleans oil spills) in 1976 and Mid-Pacific Towing (now Tow Boat Services & Management, which tows oil interisland and fuels ships at sea) in 1983.
Among the groups are National Center for Commuter Safety and Protection, United Filipino Consumers and Commuters, Philippine Interisland Shipping Association, Philippine Liner Shipping Association, Export Development Council and Philippine Exporters Confederation Inc.
Under the new fare structure, the lowest fare for a one-way nonstop interisland flight (including taxes and mandatory federal fees) is $65 for travel from Honolulu to Kahului and Lihu'e.The new structure's three lowest fares from Honolulu to Kahului, Lihu'e, Hilo and Kona are all lower than the previously published lowest web fare (see chart below).
Fifteen years later, the newest entrant to the interisland market is no joke.