This dataset contains (i) a set of worldwide airports that are relevant for the global air cargo transport (ii) a dataset containing aircraft-specific yearly recorded frequencies (referring to the year 2014) for all passenger and cargo airlines (integrators such as FedEx are excluded) for all different origin destination (OD) airport pairs (iii) a dataset for each integrator FedEx, UPS, DHL with yearly estimated cargo capacity (expressed in tonnes) referring to the year 2019 for every OD airport pair. The estimation was based on a dataset containing all recorded flights for each OD airport pair of interest, which was filtered to extrapolate only flights operated by the integrators