Unit 39, Traveling by Airplane. Airplane travelers can choose between three kinds of tickets, first class, business class, and economy class. Most people buy economy class tickets. They are cheaper, so travelers can go to more places more often. Business class is more expensive, with good seats and good service. First class is very expensive, but offers very comfortable seats and excellent service. In economy class, the seats are small and close together. There is not much leg room. In first class, the seats are huge and wider apart. There is lots of room for passengers to stretch their legs. Economy class passengers usually must all watch the same movie. First class passengers have their own TVs, and each person can watch different movies. Economy class passengers eat cheaper food. First class passengers are served delicious fresh food. It is difficult to sleep in economy class because of the small seats and all the noise. In first class, the large seats can be pushed back to make a comfortable bed. There is a curtain between sections, so it is nice and quiet. Economy class is a good choice for short flights within the same country. Business class or first class is a good choice for business travelers taking an international flight across an ocean. These people often have to get off the plane and go right to work. For them, it is important to arrive fresh, rested, and ready for a full, exciting day.