Ohio → Illinois · Interstate 71 / Interstate 75
Coming back from Cincinnati, Ohio, to Chicago, Illinois, the return leg also clocks roughly 479 km (298 miles) typically along Interstate 71 / Interstate 75, but the traffic picture shifts considerably compared with the outbound segment. Cincinnati, the Ohio River metropolis and historic Queen City of the Midwest, 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 4h 34m 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 $40.02 for 43.5 liters (11.5 gallons). The corresponding reimbursement on the way back reaches $205.97 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.