If you are wanting to stay on interstates, get on I-35, take that to I-49 (the old 71 why) in Kansas City. That will get you to the NW corner of Arkansas. It really depends on where in Arkansas you are wanting to go. Also you can take the same route, but when you get to Harrisonville, Mo on I-49, you can take that to 7 Hwy to 13 Hwy in Clinton, MO. That will take you to Springfield, MO, then get on 65 Hwy South and through Branson, MO, & into Arkansas. This route will put you in the "mid Arkansas" area. The last route is all 4 lane divided highway, almost like the interstate, but more scenery & the option of stopping in Branson. When you get to Harrison, Arkansas, it drops down from 4 lane divided to 2 lane. If you opt for the 2nd route PM me, & I can give you some tips. I travel that route a lot.
Roy & Sally Evans
Kansas City, Mo
2011 Heartland Elk Ridge
2010 Dodge Ram Cummins