On 28 December 2014, the Beijing Subway switched to a distance-based fare system from a fixed fare for all lines except the Airport Express. Under the new system a trip under  will cost ¥3.00(US$0.49), an additional ¥1.00 will be added for the next  and the next  until the distance for the trip reaches . For every  after the original  an additional ¥1.00 is added. For example, a  trip would cost ¥ 8.00.