A tourist route map from Luzhou to Shanghai, and then it will cost about 2500 yuan.

2500 yuan round-trip ticket is running out. You can simply take a bus to Chongqing, have a hot pot and go to Jiangbei Airport. After flying to Shanghai Pudong Airport, take the maglev train at the airport to Longyang Road subway station, and get off at the station and there will be a Yonghe soybean milk. After drinking, take the maglev back to the airport and fly back to Chongqing. If you don't like Chinese fast food, you can turn in the alley next to Yonghe Soymilk. In order to save electricity, there is a KFC there. In this case, if the air ticket is discounted, you may still have 300-200 yuan left when you return to Luzhou.