How long does it take to take a taxi from Chongqing Oriental Garden Hotel across Jiangbei Airport?

Be optimistic about the travel time. Taxis usually take over from 2pm to 4pm, so it is difficult to get a taxi.

Also, the Huanghuayuan Bridge is currently under construction and is so blocked that it is impossible to walk through it. The only way to get to the location you mentioned is via the Jialing River Bridge.

If there is no traffic jam, consider that you are going to Yuzhong, and you can definitely get there within 45 minutes.

If it is the morning and evening rush hours, allow at least half an hour for traffic jams.