Austral Air is a company to which reference is made in the storyline of the second Lost alternate reality game Find 815.
The company name was first seen in an e-mail sent by Sam Thomas to their HR department seeking employment. A couple days later Sam's mail was answered by Isaac Chapman, of Austral Air's HR department, who told him there were no suitable positions available but that they had put his details on file should one arise in the future. (Find 815 clues/January 8)
Austral Air later contacted Sam again through Isaac Chapman, indicating that a position had opened up that he may be interested in. Sam declined the request for an interview in the company's Sydney office. (Find 815 clues/January 29)