Not sure about that. Both airlines have similar fleet sizes but Qatar have 6 different types in service compared with only 2 for EK thus leaving them with much larger fixed costs and inflexibility. Average age of the fleet isn't a lot different either at 6 and 7 years. OK presently EK cannot fill the A380 but given the size of the 777 fleet it will be a long time before they run out of capacity on any route.