| Kennewick to Olivares | 5,325.99 mi (8,571.35 km) |
| Kennewick to Olivenza | 5,225.92 mi (8,410.30 km) |
| Kennewick to Olot | 5,358.92 mi (8,624.35 km) |
| Kennewick to Onate | 5,157.67 mi (8,300.46 km) |
| Kennewick to Onda | 5,392.60 mi (8,678.55 km) |
| Kennewick to Onteniente | 5,443.09 mi (8,759.80 km) |
| Kennewick to Orihuela | 5,471.60 mi (8,805.70 km) |
| Kennewick to Osuna | 5,373.12 mi (8,647.21 km) |
| Kennewick to Ourense | 5,011.64 mi (8,065.46 km) |
| Kennewick to Oviedo | 5,027.77 mi (8,091.42 km) |
| Kennewick to Paiporta | 5,416.52 mi (8,717.04 km) |
| Kennewick to Pajara | 5,484.57 mi (8,826.57 km) |
| Kennewick to Palafolls | 5,395.32 mi (8,682.93 km) |
| Kennewick to Palafrugell | 5,394.32 mi (8,681.32 km) |
| Kennewick to Palamos | 5,397.23 mi (8,686.01 km) |
