Nordic carrier Finnair will operate in August two transatlantic flights with a biofuel blend as part of its environmental "Push for change" initiative.
The airline says that flights from San Francisco to Helsinki today and on 7 August will be powered by kerosene containing 12% biofuel, which has been refined from used cooking oil in California.
Senior vice-president communication and corporate responsibility Arja Suominen states that the "Push for change" programme is an "important step for Finnair" to enable customers to reduce carbon emissions for their flights, and that the airline is "pleased with the early phases of the initiative".
Passengers are able to offset carbon emissions or purchase biofuel for their flights through the programme.
"We naturally hope that customers will be increasingly willing and interested in using the service in the future as well," Suominen says.