One of the key enablers of Trajectory Based Operations (TBO) is the automated updating of trajectories in reaction to developing uncertainties. However, a high frequency of updates and modifications leads to degraded system stability. The overall goal of START (a Stable and resilienT ATM by integrAting Robust airline operations into the neTwork) is to develop, implement, and validate optimisation algorithms for robust airline operations that result in stable and resilient ATM performance even in disturbed scenarios. This project has received funding from the SESAR Joint Undertaking (JU) under grant agreement No 893204. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and the SESAR JU members other than the Union.