Pudong (IATA: PVG) is Shanghai's main international airport, 40 km (25 mi) to the east of the city. Arrivals are on the first floor, departures on the third, and the airport has all the features you would expect of to find in the major hubs around the world. There are two gigantic terminals (T1 and T2). A free shuttle bus service connects the two in case walking a few minutes (or using the conveyor belts) is too cumbersome.
Metro Line 2 was extended eastward to the Pudong Airport and ventures westward through People's Square (about 1 hr) to Hongqiao Airport. A train change is required at Guanglan Rd (you basically have to leave the train and switch to the opposite side). Or you can choose a faster way, take the maglev train to Longyang Road Metro Station then transfer to Metro Line 2.