The Robert Kingery Expressway, formerly called the Tri-State Highway, is a three-mile-long (5 km), eight-lane freeway in the northeastern part of the U.S. state of Illinois.

It carries Interstate 80 (I-80) and I-94 from the Illinois–Indiana border at the Borman Expressway west to Illinois Route 394 (IL 394), I-294 (the Tri-State Tollway), and the southern end of the Bishop Ford Freeway (where I-94 turns north to downtown Chicago).

It also carries U.S. Route 6 (US 6) west from the Indiana state line to the US 6 exit with IL 83 (Torrence Avenue).

The Kingery Expressway begins at an interchange with the Tri-State Tollway to the west, the Bishop Ford Freeway to the north, and IL 394 to the south.

Past the exit, the highway continues east; it briefly curves east-southeast before crossing into Indiana and becoming the Borman Expressway.