Regional Express Pty Ltd (also known as Rex) is an airline based in Wagga Wagga, New South Wales, Australia. It operates scheduled regional services. It is Australia's largest regional airline outside the Qantas group of companies and serves New South Wales, South Australia, Victoria, North Queensland and Tasmania.
The airline was established in 2002 when the Australiawide Airlines consortium (set up by former Ansett Australia employees) acquired Hazelton Airlines and Kendell Airlines, merged the two companies and started operations in August 2002 as Rex. In 2005, Australiawide Airlines was renamed Regional Express Holdings and partially floated on the Australian Securities Exchange. On 30 November 2005, Rex announced the acquisition of the Dubbo-based Air Link, another regional airline.

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