Hawaii Hawaiian, Delta ink codeshare agreement By Shane Nelson / September 19, 2010 Share 1 -- Hawaiian Airlines and Delta have signed a codeshare agreement that gives Delta passengers access to interisland connecting flights within Hawaii for the first time. Fares for the new interisland connections are available on Delta.com. This fall, Delta is offering nonstop flights between Honolulu and Detroit, Minneapolis-St. Paul, Atlanta, Seattle, Los Angeles, San Francisco and Salt Lake City. The carrier also has nonstop service from Los Angeles to the Big Island, Maui and Kauai. Prior to the codeshare deal, Hawaiian and Delta already were enabling customers to earn and redeem miles for travel on either airline.