The aviation industry has remained at the forefront when it comes to technology adaptation and it seems the case for adaptation of blockchain technology. Blockchain technology has appeared as a landmark revolution in data encryption and storage. The distributed ledger system allows the hashes to be available with multiple nodes any time and tampering or modification creates a new hash hence makes it easy to confirm the authenticity of the data files and track the node where the changes happened. Blockchain technology promises a great future for digital data security for digital transactions be it informational or monetary. Industries that deal with information exchange between multiple stakeholders like aviation industry have found multiple applications of blockchain technology, the adaptations in the industry are advancing but still, there is a long way to go. In this chapter, we discuss various transaction situations in the aviation industry where the blockchain technology can be of use or have already been put to practice.