China Eastern Airlines, Druk Air and 6 other airlines fly from Shanghai to Paro every 4 hours.
How to get from Shanghai to Bhutan
From South Shaanxi Road Station line 10 Shanghai Metro to Shanghai Hongqiao airport, fly to Paro airport, then drive to Paro. 20 h 17 min $650. From West Nanjing Road line 2 Shanghai Metro to Longyang Road, Maglev to Shanghai Pudong airport, fly to Paro airport, then drive to Paro. 12 h 17 min $766.