The juice was launched in 2014, using the wild blueberries that grow abundantly in Finland and surrounding nations.
Per Finnair, the juice is made from wild blueberries, also known as bilberries.
Unlike US supermarket-bought blueberries, these berries are purple in the middle instead of yellow, and tend to be smaller.
In late 2020, the airline started selling the blueberry juice in Finnish supermarkets.
Marika Nieminen, the executive responsible for Finnair's food output, said at the time that it was a way to give Finns a taste of travel while COVID-19 had made it difficult to go abroad.
In 2021, the airline reformulated the recipe to remove grape juice concentrate and make blueberries the only fruit in the juice.