The Airport line is a commuter rail service on the Transperth network, in Perth, Western Australia, that officially opened on 9 October 2022, with regular services commencing the following day. It is 25.4 kilometres (15.8 mi) long, and goes between High Wycombe and Claremont, via Perth Airport and Bayswater. The section between High Wycombe and Bayswater uses all new infrastructure, built between 2016 and 2022. In contrast, the section between Bayswater and Perth shares infrastructure with the Midland and Morley–Ellenbrook lines, and the section between Perth and Claremont with the Fremantle line.