Which bus will take me from Pudong Airport to the Waldorf Astoria on the Bund?

Hi, you can take shuttle bus line 6 to Laoximen, which is around 2.5km from your hotel. So upon arrival at Laoximen, you can take a taxi there in a few minutes.

Or you can also take subway line 2 to East Nanjing Road. Upon getting off, a taxi can take you to your hotel within 5min.