Best Route Chicago to Dallas?

I-57 to I-55 to I-40 to I-30 looks like the best bet to me. You don't want construction? Good luck on that. You could take I-55 to I-44 and look for a short route through Oklahoma and Texas like hwy 69-75,but that can get pretty congested, or go to I-35 and down and that's definitely congested in the daytime. For high speeds you'll need to take the route through Wyoming.

 

I make this drive weekly, finding no construction is going to be impossible. However, the fastest and shortest all interstate route (65-75 mph) is I-55 South to I-44, I-44 West to I-35. I-35 south to Dallas.

I-44 is an Oklahoma Toll Road and if I remember right the total toll for the entire route for cars is like $6.00-$8.00.