Ready to island hop and hop to the mainland? From Sept. 6 of last year, members of HawiianMiles have been earning discounts when flying interisland flights on Hawaiian Airlines. For each interisland one-way flight until May 31, 2007, members earn five percent off roundtrip fare between the mainland U.S. and Honolulu. For example, if you fly two roundtrip interisland flights, you can redeem 20 percent off a roundtrip transpacific flight; flying 10 or more roundtrip interisland flights will net you a free trip between the mainland U.S. and Hawaii. So, if you’re getting close to that free ticket, be sure to island hop to make your goal before the end of the month. Use your discounts to travel between the Mainland U.S. and Honolulu before June 15, 2007.