Do we need a more expensive air travel? Cheap flights make us traveling across border in a low price possible, which I think is beneficial to the public, though we should reduce the unnecessary travel by air. People could experience various culture through traveling different countries by plane; thus expanding their outlook. Some people could get better job opportunities in other countries then obtain higher income; while some businessmen are possible to meet commercial chances to gain benefits by exporting or importing products. Some of them would lose these possibilities if the prices of flights were arise. Meanwhile, some people argue that the pricy service of flights will diminish the negative impact to the environment from ... High price will make some people abandon their plans of traveling by air to sort of destinations frequently; thereby reducing the flights, so as to reduce the greenhouse gas exhausted from planes. Other ... associated problems, including noise pollution, the environmental destruction from the construction and maintain of airports and other related infrastructures, will be improved. From my perspective, it is unnecessary to promote the flight prices because people deserve the chance of traveling and relaxing in different places. Citizens, especially who live and work in big cities, are extremely busy and full of pressure. If the flight is cheaper, they can take vacation in a relatively further spot. For example, Chinese tourists can visit some countries in Africa and enjoy the local food, rather than just relieve at home. In conclusion, my view is that decreasing the flight price is unreasonable. Through technological innovations, airport companies can reduce the strain on environment from flights.