Hawaiian Airlines and Delta Air Lines announced a partnership today that will allow their customers to interchange frequent flier miles between the two airlines.

The new agreement enables members of HawaiianMiles to earn and redeem miles on all Delta flights systemwide. Delta's SkyMiles members may now earn and redeem miles for travel on all interisland flights operated by Hawaiian. Additionally, SkyMiles members can earn and redeem miles on Hawaiian's nonstop Honolulu-Sydney, Australia, service, as well as its new nonstop service between Honolulu and Manila, Philippines, that launches April 14.

"Hawai'i is a popular destination for our customers, and we're thrilled about this new partnership," said Jeff Robertson, managing director of the SkyMiles program.

Delta SkyMiles members will earn base miles, class of service and elite tier bonuses on eligible fares of flights operated by Hawaiian. HawaiianMiles members will earn miles flown in coach and miles flown plus 50 percent bonus miles in Business or First Class when traveling on Delta.