Qantas Airways Limited is the flag carrier of Australia. It is the largest airline by fleet size, international flights, and international destinations in Australia and Oceania. Qantas is the world's third-oldest airline by foundation date and the oldest airline in the English-speaking world — being founded in November 1920. Qantas is a founding 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.