SWISS becomes first airline to integrate Synhelion’s solar fuel into its flight operations

July 29, 2025 |

In Switzerland, Swiss International Air Lines (SWISS) said it has become the first airline in the world to integrate the solar fuel manufactured by the Swiss-based Synhelion clean-tech company into its regular flight operations.

Synhelion delivered a first 190-liter barrel of synthetic crude oil from its DAWN production facility to a refinery in Northern Germany, where the oil, which had been manufactured using solar energy, was processed into certified Jet-A-1 aviation fuel. The fuel was then fed into SWISS’s flight operations infrastructure via the fuel supply system at Hamburg Airport.

“This first delivery of Synhelion’s solar fuel marks a genuine milestone in our long-standing partnership,” said SWISS CEO Jens Fehlinger. “We have intentionally invested in a Swiss start-up; and we are delighted to celebrate this landmark achievement together. This is the first time that solar fuel has been used in civil aviation. And we are truly proud to be playing such a pioneering role, in partnership with Synhelion, in driving and developing this vital new technology for a more sustainable aviation sector.”

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Category: SAF

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