Hawaiian Airlines signs SAF deal for use on selected Osaka to Honolulu  flights

Hawaiian Airlines has announced it will be incorporating sustainable aviation fuel (SAF) on flights between Osaka, Japan, and Honolulu, Hawai‘i under a new agreement. The deal, signed between Hawaiian’s parent company, Alaska Air Group, and Cosmo Oil Marketing, a subsidiary of Cosmo Energy Holdings, was announced on August 29, 2025, by the airline on its website.

Under the terms of the deal struck between the parties, fuel deliveries have already begun at Osaka-Kansai International Airport (KIX) into Hawaiian Airlines Airbus A330s. The deliveries mark the first time Hawaiian Airlines has introduced SAF, which can lower life-cycle carbon emissions by up to 80% compared to traditional jet fuel, said an airline statement.

Wenjie Zheng / Shutterstock“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, which we are now using on our flights between Osaka and Honolulu,” commented Alanna James, Sustainability Innovation Director at Hawaiian Airlines.

SAF deal signed

According to the airline statement, the SAF traded 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 organization was incorporated to establish 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.

Markus Mainka / Shutterstock“SAF is one of our key decarbonization products and plays an essential role in the decarbonization of the aviation industry,” said Naoki Takayama, President of Cosmo Oil Marketing. “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 fuel to be supplied to Hawaiian Airlines under the agreement will be produced by Saffaire Sky Energy, a joint venture formed by Cosmo Oil, JGC Holdings, and REVO International.

The Cosmo Energy Group has worked to establish a supply chain to deliver Japan’s first locally made SAF, to achieve net-zero carbon emissions by 2050. The Group is also helping build social momentum through initiatives such as an ongoing pilot program to collect household used cooking oil at service stations for repurposing into SAF feedstock.

Hawaiian promotes SAF benefits

Closing its statement announcing the deal, the airline stated, “Alaska Airlines and Hawaiian Airlines, both founded more than 90 years ago to connect communities, bring people together, transport products, and enable economic growth, are committed to stewarding their environmental impact to create a durable, long-term future for the company.”

“As the most fuel-efficient premium US carriers, Alaska Airlines and Hawaiian Airlines have an ambition to achieve net-zero carbon emissions by 2040 through investments in SAF, technology, and fleet modernization, among other initiatives.”

Angel DiBilio / ShutterstockHawaiian Airlines operates a daily service between its base at Honolulu-Daniel K. Inouye International Airport (HNL) and Osaka-Kansai International Airport (KIX) with flight numbers HA449 and HA450 using Airbus A330-200s, which each accommodate 278 passengers in a two-class configuration.   

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