According to the information displayed on Baidu map, the specific bus route from Shanghai Hongqiao Airport to Pudong Airport is: walk 190 meters at Shanghai Hongqiao Airport, get on at Hongqiao Terminal 2, take Metro Line 2 (in the direction of Pudong International Airport), get off at Pudong International Airport Station, and walk 10 meters to Shanghai Pudong International Airport. The whole journey takes 1 hour and 35 minutes.

From Shanghai Hongqiao Airport to Pudong Airport, you can also take a taxi. The specific taxi routes are: via Outer Ring Expressway and Yingbin Expressway. The taxi fare is about 195 yuan, and it takes 58 minutes to get there.