This seminar discusses the historical development of aviation law in Hong Kong since WWII. Although aviation law does not have a long history, it has been rapidly developed since the Second World War. The international nature of aviation underlines the need of international harmonization. Therefore, aviation-specific multilateral treaties play a key role. At the same time, domestic aviation law retains an important place. This seminar reviews Hong Kong’s specific aviation law issues in chronological order. From how cabotage rule and fifth freedom of the air affected Hong Kong in 1940s to why JetStar Hong Kong’s application was rejected in 2015 will be discussed.