Austro Control takes measures to protect the climate and lead air traffic into a sustainable future. Above all, the Free Route Airspace between Austria, Slovenia, Croatia, Bosnia & Herzegovina and Serbia/Montenegro, which has been implemented in 2018, ensures that flight movements are processed as efficiently as possible. In late 2021, this cooperation was extended to include Albania and North Macedonia. As a result, aircraft are able to traverse the associated airspaces using the shortest and most direct route possible. This not only saves time, but also reduces fuel consumption and thus harmful emissions. In close coordination with other surrounding air navigation service providers, further projects to expand the free route airspace are currently being pursued. Accordingly, cross-border free route operations between Austria and Germany commenced in the spring of 2022.