United has cheap round-trip airfare from Dallas (DFW) to Osaka (KIX or ITM) $765. Flights will have either one or two layovers, depending on what schedule you select.

[11/25/2014 @ 2:59 PM] Nagoya is no longer on sale. Osaka is still available.
[12/04/2014 @ 5:02 PM] Fare has decreased to $765 from $865!
[12/06/2014 @ 11:59 AM] It looks like this fare is no longer available. 🙁 Next best price is coming up as $1300.

Read More Cheap Flights: Dallas to Osaka $765 r/t – United

Airfare Deals Osaka United