- Airnorth is a regional airline based in Australia. It operates scheduled passenger and charter flights to various destinations within Australia, as well as some international destinations in East Timor and the Philippines. Airnorth is a subsidiary of the Bristow Group and was founded in 1978. The airline has its main base in Darwin and operates a fleet of turboprop and jet aircraft. Airnorth focuses on providing convenient and reliable air travel options for residents and businesses in remote and regional areas of Australia.