I want to buy a plane ticket from Portland, Oregon (PDX) to Fukuoka, JAPAN (FUK). The most obvious schedule is to take the direct flight from Portland to Tokyo (NRT) on Delta airlines and then a flight from from Tokyo to Fukuoka on either ANA or JAL. The problem is that I cannot get this schedule to appear on any site online site (Delta/Expedia/Travelocity/Orbitz/Kayak/Hipmunk) despite the fact that it seems I that I could buy these tickets separately (ie. the flights are not full). What is going on here? Is there someway I can book this ticket online or is there some reason this schedule can't be ticketed?
The dates I am trying are PDX->FUK on 26-DEC-2013 - FUK->PDX on 25-JAN-2014