For the most SkyTeam MQMs, you should go via CDG. This is a valid routing -- long but valid. :-)

Cincinnati OH US To Sapporo Chitose JP, at 8 Jan 2007 ( 10808 Mi ) ( 17293 km )

DL44 / AF292 / AF8020 Dep 19:30 , Arr: 12:50 Stops: 2

Delta 44 Dep: CVG at 19:30 , Term: 3 Arr: CDG at 9:50 Term: 2E
Equip: 767, Meal: D, Dur : 8h20m

Air France 292 Dep: CDG at 13:30 , Term: 2F Arr: KIX at 9:10 Term:
Equip: 77W, Meal: MB, Dur : 11h40m

Air France 8020 Dep: KIX at 11:00 , Term: Arr: CTS at 12:50 Term:
Equip: 767, Meal: , Dur : 1h50m Operated By JAL