Shanghai is near Zhabei, but if you are not familiar with the subway 1, 3 and 4 lines, it will take more than 10 minutes to buy tickets at the subway station (crowded). ...
2. If you go to Pudong from Hongqiao, take Line 2 directly to Blu-ray Road, get off and transfer, and take Blu-ray Road to Pudong Airport. I often do it at the front end, but I haven't been there since Blu-ray Road. If you are in a hurry, you'd better change to maglev at Longyang Road, which takes more than 7 minutes, and the frequency is 15 minutes (PS: the terminal is too long, about 15 minutes).