Young had five of Houston's six 3-pointers and Thomas also grabbed eight rebounds. Leon Gibson had 12 rebounds as Houston (9-3) took control early.
Chicago State (3-11) led briefly in the first three minutes, but Houston raced to a 40-25 halftime lead and was ahead by as many as 27 points in the second half.
Houston shot 45 percent in each half while Chicago State finished at 34 percent from the field.
College basketball fans should be excited about next season's Jimmy V Classic, an event that will feature Duke's heralded freshman class.
Jeff Goodman logs all the coaching changes following the 2015-16 college basketball season.
Can Josh Pastner keep top talent in Georgia? Will Tubby Smith change his recruiting philosophy at Memphis? New coaches face some difficult questions.