The journey from Champaign to Tulsa covers 950 kilometers. Driving is the most practical mode, taking about 9 hours via I-57 South and I-44 West. You will pass through St. Louis and Springfield, Missouri. This is a long-distance drive, so plan for multiple stops. Expect heavy traffic in the St. Louis area.
Total Distance: 950 km driving, 820 km air distance.
Plan for an overnight stop if you prefer not to drive 9 hours straight.
Spring or Fall for pleasant weather in the Ozarks.