Airlines require a high level of integration capability because their business models are characterised by integrated processes and shared data. However, not only does their data end up in silos they often lack appropriate access to some of the silos. This paper looks at the common problems and anti-patterns of integration and introduces the T2RL IO Score, for measuring the integration opportunity of airline systems, and the T2RL Agility Platform, a blueprint for addressing the challenges of enterprise integration within airlines.