Visitors to the mainland of the People’s Republic of China must obtain a visa from one of the Chinese diplomatic missions, unless they are a national of one of the visa-exempt countries.
For more information on visa/entry permit requirements for visitors to China, you may refer to https://en.wikipedia.org/wiki/Visa_policy_of_mainland_China
Two international airports:
Shanghai has two international airports which are about 40 km apart: Pudong International Airport(PVG) and Hongqiao International Airport(SHA). The nearest airport to Shanghai is Shanghai Hongqiao (SHA) Airport which is 11.1 km away. Other nearby airports include Shanghai Pudong (PVG) (34.1 km).
Shanghai Pudong International Airport (IATA: PVG, ICAO: ZSPD) is one of two international airports serving Shanghai and a major aviation hub of East Asia. Pudong Airport serves both international flights and a smaller number of domestic flights, while the city’s other major airport, Shanghai–Hongqiao, mainly serves domestic and regional flights in East Asia.
Located about 30 kilometres (19 mi) east of the city center, Pudong Airport occupies a 40-square-kilometre (10,000-acre) site adjacent to the coastline in eastern Pudong. The airport is the main hub for China Eastern Airlines and Shanghai Airlines, and a major international hub for Air China, as well as a secondary hub for China Southern Airlines.
The quickest way to get from Shanghai Hongqiao Airport (SHA) to Shanghai Downtown is to taxi which costs CNY 65-80 and takes 10 min. Taking a Taxi from Shanghai Pudong Airport to Shanghai City Center Center, the average rates are around CNY 185 during the day and CNY 240 at night (23:00 to 05:00), but these are subject to change significantly if you’re stuck in traffic.
Shanghai is one of the four direct administered municipalities of the People’s Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowing through it. The population of the city proper is the third most populous in the world, wit h 24.89 million inhabitants in 2021 , while the urban area is the most populous in China, with 39,300,000 residents. As of 2018 , the Greater Shanghai metropolitan area was estimated to produce a gross metropolitan product (nominal) of nearly 9.1 trillion RMB ($ 1.33 trillion). Shanghai is one of the world’s major centers for finance, business and economics, research, science and technology, manufacturing, transportation, tourism, and culture, and the Port of Shangha i i s the world’s busiest container port.