Hawaiian Airlines has received the green light to expand its daily service between Haneda International Airport in Tokyo and Hawaii just in time for the 2020 Olympics.

The U.S. Department of Transportation on Friday awarded the state’s largest carrier one of 12 available Haneda slots that Hawaiian plans to use for an additional daily nonstop flight between Haneda and Daniel K. Inouye International Airport in Honolulu. Hawaiian plans to increase service in the summer of 2020 ahead of the Tokyo Olympics. The order by the DOT finalizes a tentative award issued in May.

Delta Airlines received five Haneda slots, including one from Honolulu.

“As the U.S. airline offering the most flights to the most markets between Japan and Hawaii, we look forward to building on the popularity of our authentic Hawaiian hospitality by adding another convenient option for guests traveling between Haneda and Honolulu,” Hawaiian President and CEO Peter Ingram said in a statement. “Our new service will allow more travelers from Tokyo and beyond to enjoy our unparalleled network of flights connecting Japan and the Hawaiian Islands.”

Hawaiian, which initiated Haneda-Honolulu service in November 2010, added a second daily Haneda flight in December 2016 with service four days a week to Honolulu and three days a week to Kona.

Haneda is a preferred destination — yet generally more expensive — for many travelers than Narita International Airport, which is about 40 miles from the center of Tokyo. Hawaiian began daily nonstop service to Narita in July 2016.

Hawaiian, which today operates 31 weekly nonstop flights between Japan and Hawaii with its 278-seat, wide-body Airbus A330 aircraft, also offers daily nonstop service to Osaka and flights three times a week to Sapporo. It will further expand its network Nov. 26 when it begins four weekly flights between Fukuoka and Honolulu.

The announcement Friday by the DOT comes at a time when Hawaiian and Japan Airlines await government approvals for their antitrust immunized joint venture application. The proposed alliance, which promises significant consumer benefits including lower fares, increased capacity and enhanced consumer choice, would facilitate Hawaiian’s access to 34 destinations throughout Japan, including Nagoya and Okinawa, as well as 11 points in Asia beyond Japan. Japan Airlines and its customers, in turn, would enjoy improved access to Hawaiian’s neighbor island network as well as its nonstop flights to Honolulu from Haneda and Sapporo.

Hawaiian had filed an application with the DOT seeking three of the 12 slots, but the DOT awarded two slots to American Airlines to serve Haneda from Dallas/Fort Worth and Los Angeles; five to Delta for service to Haneda from Honolulu, Atlanta, Detroit, Seattle and Portland, Ore.; and four to United Airlines to serve Haneda from Chicago, Los Angeles, Washington-Dulles and Newark, N.J.