There are one direct and indirect flights connecting Exeter and Shanghai every week, with the journey taking 23 hrs 30 mins on average.
Or, if you're fairly flexible on dates, try to get a last minute-deal by regularly checking the Netflights website.
Shanghai actually has one airports to choose from – but Shanghai Pu Dong Airport (PVG) is the usually the cheapest option. If you need to fly into a specific airport, adjust your search to focus on those flights. The most popular airlines include Lufthansa.
If you can’t find flights that suit you, consider flying to a another part of China.