The airline industry increasingly relies on complex software systems across various operations, necessitating software teams to prioritize safety without compromising speed. Critical to this is the adoption of modern DevOps and CI/CD practices, which integrate automated safety and compliance checks, ensuring secure and efficient updates. Challenges such as lengthy release cycles, complex system interdependencies, and legacy system constraints are mitigated through automated testing and deployment strategies like blue-green deployments and canary releases. These practices not only ensure safety and compliance with regulations such as DO-178C and IATA standards but also enable airlines to maintain 24/7 operations, improve passenger experiences, and gain a competitive edge. CircleCI is highlighted as a tool that supports these advancements by providing scalable, reliable, and secure CI/CD solutions tailored to the aviation sector.