Q&A: Why is Alaska Airlines using sustainable aviation fuel in San Francisco? Alaska Airlines and Horizon Air have long been pioneers in testing and implementing the use of Sustainable Aviation Jet Fuels (SAF) to reduce our carbon footprint and advocate for more sustainable flying. Today, we signed a 4-year agreement with Neste to fuel our aircraft in SFO with sustainable aviation fuel. Learn more 4 min read August 13, 2020 Keep up with Alaska