Fly from New York to Tokyo for $688 round-trip on China Eastern.
Searching Orbitz.com, we found seats for spring travel, departing JFK on Tuesday, May 10, returning from NRT on Sunday, May 22. Flights connect via Shanghai PVG.
And yes, outbound flights will most likely include an overnight stay in Shanghai, though not on the return, at least for most of the dates we saw.
Other dates are also available for winter/spring travel, departing through May.
See our Tokyo NRT fare listings for a complete look at current deals from all over the US and Canada.
Need a room in Tokyo? Here's what's available for the above dates on Hotelwatchdog.