In many countries prices of airplane tickets have dropped. Is it positive or negative situation? It is true that airfares is increasingly cheap in many parts of the world. Although trend has many benefits, it also brings about some relevant problems. There are several reasons why cheap airfares can cause some problems. Firstly,a growing number of people prefer to travels by airplane instead of train or boat, because airplane tickets have become increasingly cheap. As a result, frequent air flights are likely to create an increased amount of greenhouse gases, which are detrimental to the environment. Secondly, a large number of people choose cheap flights and airline companies are adding to more flights to adjust the growth number of passengers. Which leads to the increase in air traffic. So, the possibility of air crash becomes higher. On the other hand, I believe that cheap flights are beneficial to our life. The main reason, taking the airplane enables me to save money so as to I have taken the airplane as long as I travel, since prices dropped. Another reason is that cheap flights can help companies cut their cost and save more money, because most big multinational corporations have businesses around the world. So these business people have to travel regularly around the world. In addition, some people gives importance to overseas entertainment . Cheap flights provide more opportunities for people to broaden their eyes and connect with other parts of the world. In conclusion, while there are several problems, I believe that cheap flights play a vital role in our life.