United Airlines has more long-haul flights than any other carrier globally. Its high-premium, 167-seat Boeing 767-300ERs are by far its lowest-capacitywidebody equipment. According to ch-aviation, it has 24 frames in this configuration. Cirium Diio data shows they’ll operate 11 summer routes, all to Europe, from Newark and Chicago O’Hare. With 42% of services, the high-yielding link from Newark to London Heathrow remains utterly vital. That airport pair is among the top 10 for passengers from the US to Europe.