2nd Airport Expressway

alt=2nd Airport Expressway shield
2nd Airport Expressway
Route information
Length11.5 km (7.1 mi)
Existed2008–present
Major junctions
FromYaojiayuan Road in Chaoyang District, Beijing
ToTerminal 3 at Beijing Capital International Airport
Location
CountryChina
ProvinceBeijing
Highway system
Beijing S50 Beijing S66

The 2nd Airport Expressway (Chinese: 首都机场第二高速公路), officially numbered S51, is a toll expressway that connects eastern Beijing with Terminal 3 of Beijing Capital International Airport. It opened on February 29, 2008, just prior to the 2008 Beijing Olympics. It runs for 11.5 km from Yaojiayuan Road in Chaoyang District to Terminal 3. It was built to serve the new Terminal 3, and to reduce pressure of Airport Expressway, which has been heavily congested.