airBaltic Expands Cryptocurrency Offering With NFT Sales Advertisement: Latvian flag carrier airBaltic has become the world’s first airline to jump on the non-fungible token (NFT) craze. The airline is offering limited NFTs of an Airbus A220-300 along with unique pieces of art promoting Latvian towns and cities. airBaltic will be the world’s first carrier to issue NFTs. Photo: Getty Images. airBaltic will drop the first NFTs in April After making headlines back in 2014 as the first airline globally to accept Bitcoin (BTC) as payment, airBaltic will become the first airline to issue NFTs. Non-fungible tokens are a type of cryptocurrency asset which uses blockchain technology. Each token is completely unique and acts as a type of digital certificate of ownership.