Missouri → Illinois · Interstate 70 / Interstate 35
Coming back from Kansas City, Missouri, to Chicago, Illinois, the return leg also clocks roughly 783 km (487 miles) typically along Interstate 70 / Interstate 35, but the traffic picture shifts considerably compared with the outbound segment. Kansas City, the Missouri jazz and barbecue capital straddling the state line and a key Midwest rail hub, fades behind the wheel while the vehicle pushes back toward Chicago, the largest Midwest metropolis and a national logistics hub, often after a full day of meetings, site visits, or prospecting calls. Plan 7h 27m plus a generous buffer against evening congestion, particularly on Fridays, holiday eves, or after major sporting events. Driver fatigue is the dominant concern returning home; mandatory rest breaks every two hours are non-negotiable. Fuel spend on the return stays near $65.50 for 71.2 liters (18.8 gallons). The corresponding reimbursement on the way back reaches $336.69 at $0.43/km. Combine both legs on a single Clara receipt to document the full round-trip cleanly, with separate timestamps for transparent audit defense.