Felix Airways started as a domestic airline in Yemen in 2008 but has since expanded regionally. To succeed, it has adopted strategies from successful low-cost carriers like focusing on aircraft revenue over passengers, developing multi-hub networks, and offering ancillary services. Felix analyzes demand patterns, aircraft costs, and competitors to determine the optimal fleet size and routes. Using techniques like the 'U curve' method, it aims to match capacity to demand in a cost-effective way and achieve the lowest unit costs.