When most people envision the world’s largest airlines, they almost always picture international legacy carriers that operate massive global networks. Airlines like United Airlines, China Eastern Airlines, and Ryanair come to mind, all of which operate thousands of daily flights from their major operating bases. There are many ways to measure the size and prominence of an airline, and, as a result, one will typically find that there will be different carriers rising to the top depending on what statistics you may choose to evaluate.