Hawaii Alaska Airlines debuting seasonal Portland-Kauai service in Nov. By Shane Nelson / May 21, 2012 Share 1 -- Alaska Airlines will begin nonstop, seasonal service between Portland, Ore., and Kauai Nov. 5, increasing its total number of weekly flights between the Northwest gateway and Hawaii to 26. “The four weekly flights is an indication of the continued demand for travel to the Hawaiian Islands and will help to distribute the benefits of tourism across our state,” said Mike McCartney, president and CEO of the Hawaii Tourism Authority, in a statement. “The HTA estimates the flights will provide $12.7 million in visitor spending.” Scheduled for Nov. 5 through April 7 of next year, Alaska will operate the new Portland-Kauai seasonal service on its 157-passenger Boeing 737-800 aircraft. The carrier currently offers nonstop service from Portland to Honolulu, Maui and Kona on the Big Island of Hawaii. Alaska is offering introductory fares starting at $199 each way that must be purchased by May 24 for travel from Nov. 5 through Dec. 24.