How long is the flying time from Shanghai to Dublin Ireland?

I did this trip last month and will again in July, if you stop over in London (there are no direct flights from dublin to shanghai. Most of the time you will stop here but can also choose other euro stops.) it is aprox 12 hours from London to shanghai. It took me just a shade under.

less than an hour to London means 13 hours. Obviously you will need to add the layover time in lonndon as well. This will vary from flight to flight. I flew Virgin and it was 3 hour 50 min stop on the way to shanghai. Just 2 on the return.

That is 17 hours give or take five to ten minutes to get from Dublin to Shanghai.

The shortest possible time would be 14 and a half to 15 hours (With a one hour to 90 minute stopover in England. Due to the check in one hour before flight all flights have a 90 minute minimum stopover.)

So to answer your question expect the actual in plane part to take 13 hours (1 to London and 12 London to Shanghai.)