As many airlines report record demand for flights, there are signs a model built over the past 40 years is under strain.
Airlines have built up a valuable source of income in recent decades by selling points or air miles to banks and finance companies, with some offering co-branded credit cards. Bethany Rae
Matt Jones is no ordinary frequent flyer. When the former chartered accountant flew from London to Cape Town this winter, he skipped the direct overnight flights linking the two cities.
Instead, he set off on a voyage of five flights on four airlines, hopping from London to Oslo and then on to Zurich, Johannesburg and Windhoek, in Namibia. He finally reached his destination after more than four days of travelling.
