Korean Air is advancing its environmental efforts by expanding the use of domestically produced sustainable aviation fuel (SAF) on its Japan routes. Following a successful year-long trial on the Incheon–Haneda route, the airline is now deploying a 1% SAF blend on flights from Incheon to Kobe and from Gimpo to Osaka. This move aligns with broader national plans to reduce aviation emissions and support the transition to cleaner energy in the skies.
New SAF Routes Strengthen Commitment to Carbon Reduction
Starting September 19, 2025, Korean Air began operating with a 1% SAF blend on two additional routes: Incheon–Kobe (KE731) and Gimpo–Osaka (KE2117). This expansion will continue through December 31, 2026, covering approximately 90 flights to Kobe and 26 to Osaka. The fuel, derived from used cooking oil and supplied by domestic refiners HD Hyundai Oilbank and GS Caltex, meets international standards under ICAO’s CORSIA framework.
Building on a successful Trial program
The airline’s decision to expand SAF usage follows a successful trial on its Incheon–Haneda route, conducted from August 2024 to August 2025. During this period, Korean Air tested the performance and safety of SAF, gaining confidence in its viability as a cleaner alternative to conventional jet fuel. With SAF capable of reducing life-cycle carbon emissions by up to 80%, the trial played a critical role in validating the fuel’s operational reliability.
Preparing for Future Regulations and Industry Trends
Korean Air’s initiative also positions it ahead of impending government regulations. Starting in 2027, South Korea will require all outbound flights to use at least a 1% SAF blend, with this mandate increasing to 3–5% by 2030 and up to 10% by 2035. By proactively adopting SAF now, Korean Air not only supports national climate goals but also signals its leadership in sustainable aviation within Asia and beyond. For more on Korean Air, see HERE
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