Finnair is the flag carrier and largest full-service legacy airline of Finland, with headquarters in Vantaa on the grounds of Helsinki Airport, its hub. Finnair and its subsidiaries dominate both domestic and international air travel in Finland. Its major shareholder is the government of Finland, which owns 55.9% of its shares. Finnair is a member of the Oneworld airline alliance.

A flag carrier is a transport company, such as an airline or shipping company, that, being locally registered in a given sovereign state, enjoys preferential rights or privileges accorded by the government for international operations.