Netflights is free and simple to use. You can view all 60 of the weekly flights to Tokyo, flown by 13 airlines. Having them all in one place makes it easy to compare prices and find the best deal for you.
Tokyo actually has one airports.
On average, the 1836 km flight from Shanghai to Tokyo takes 10 hrs 40 mins. If you're landing late, why not take a look at hotels near the airport? We've got a range of accommodation and car hire options across Japan.