Alaska Air Group Signs SAF Sales Agreement with Cosmo Oil Marketing for Hawaiian Airlines Osaka-Honolulu Flights

Alaska Air Group has announced the signing of a sales agreement with Cosmo Oil Marketing to provide blended SAF on select Hawaiian Airlines’ flights between Osaka and Honolulu.

Hawaiian Airlines Airbus A330 - Courtesy Alaska Air Group

On Friday (August 29, 2025), Alaska Air Group announced that Hawaiian Airlines will be incorporating sustainable aviation fuel (SAF) on select flights between Osaka, Japan, and Honolulu, Hawai‘i under a sales agreement with Cosmo Oil Marketing Co. Ltd., a subsidiary of Cosmo Energy Holdings Co., Ltd.  SAF deliveries will begin this month at Kansai International Airport, marking the first time Hawaiian Airlines has introduced SAF.  On a lifecycle basis, SAF can lower carbon emissions by up to 80 percent compared to conventional fossil-based jet fuel.

In Friday’s announcement, Hawaiian Airlines’ Sustainability Innovation Director, Alanna James, said,

“Japan is an important international market for Hawaiian Airlines, and we appreciate Cosmo’s investment in locally sourced SAF – the most effective technology to lower our carbon emissions – that we are now using on our flights between Osaka and Honolulu.”

Also commenting on the new SAF uptake agreement, Cosmo Oil Marketing’s President and Representative Director, Naoki Takayama, said,

“SAF is one of our key decarbonization products and plays an essential role in the decarbonization of the aviation industry.  We are delighted to contribute to the decarbonization efforts of global airline Alaska Airlines and its customers through SAF.  Moving forward, we will continue to support the realization of a decarbonized society, starting with this collaboration, by promoting the use of SAF.”

The SAF purchased under this agreement was commercialized following Cosmo’s receipt of a New Energy and Industrial Technology Development Organization (NEDO) subsidy from the Japanese government in 2021. The aim of this NEDO subsidy is to create a supply chain model for SAF production from used cooking oil sourced domestically in Japan.

Cosmo Energy Group’s facility will be the first to mass produce SAF in Japan, and the SAF will come with ISCC CORSIA and ISCC EU certifications.  These certifications are part of the International Sustainability and Carbon Certification (ISCC) initiative, which recognizes compliance with international standards for sustainable products.  The SAF will be produced by SAFFAIRE SKY ENERGY LLC, a joint venture formed by Cosmo Oil Co., Ltd., JGC HOLDINGS CORPORATION, and REVO International Inc.

Source: Alaska Air Group