Modern aviation has diversified greatly and moved on from the hub-and-spoke model. Advances in small and mid-sized aircraft technology have made point-to-point services preferable for most passengers. As far as the Airbus A380 is concerned, the majority of runways and gates at the world’s airports are not large enough to accommodate this behemoth. As a result, most airlines are now moving away from this aircraft. Of the 15 total operating airlines, five have fully retired the jet from their fleets, while some still fly it as they await deliveries for other widebody planes. Others, such as British Airways, use it to solve a unique problem. In this case, the jet gives the huge capacity needed to overcome limited slots at the forever-congested London Heathrow Airport.