As competition heats up among airlines, air tickets become more and more affordable. And when air tickets become more affordable, more and more people are going to travel. Another equally important reason is the rise in the number of households with disposable incomes. Many families now earn a lot more than they need. People with high income are exploring newer ways to spend that money. It is quite common for them to travel to foreign countries. Families with surplus income are also more likely to send their children abroad for higher studies.