| Kennewick to Oerlinghausen | 4,983.69 mi (8,020.47 km) |
| Kennewick to Oestrich-Winkel | 5,078.22 mi (8,172.61 km) |
| Kennewick to Offenburg | 5,163.27 mi (8,309.48 km) |
| Kennewick to Oftersheim | 5,128.84 mi (8,254.08 km) |
| Kennewick to Ohrdruf | 5,098.87 mi (8,205.83 km) |
| Kennewick to Ohringen | 5,161.86 mi (8,307.21 km) |
| Kennewick to Olbernhau | 5,169.74 mi (8,319.89 km) |
| Kennewick to Olching | 5,265.16 mi (8,473.46 km) |
| Kennewick to Oldenburg | 4,906.32 mi (7,895.96 km) |
| Kennewick to Oldenburg in Holstein | 4,903.09 mi (7,890.75 km) |
| Kennewick to Olfen | 4,966.00 mi (7,992.01 km) |
| Kennewick to Olpe | 5,016.63 mi (8,073.49 km) |
| Kennewick to Olsberg | 5,014.06 mi (8,069.34 km) |
| Kennewick to Oranienburg | 5,045.36 mi (8,119.72 km) |
| Kennewick to Ortenberg | 5,084.71 mi (8,183.04 km) |
