| Port Orchard to Nuth | 4,982.59 mi (8,018.70 km) |
| Port Orchard to Oegstgeest | 4,876.00 mi (7,847.16 km) |
| Port Orchard to Oirschot | 4,935.05 mi (7,942.20 km) |
| Port Orchard to Oisterwijk | 4,927.88 mi (7,930.65 km) |
| Port Orchard to Oldebroek | 4,895.00 mi (7,877.75 km) |
| Port Orchard to Oldenzaal | 4,926.82 mi (7,928.95 km) |
| Port Orchard to Ommen | 4,903.28 mi (7,891.07 km) |
| Port Orchard to Oosterend | 4,867.18 mi (7,832.97 km) |
| Port Orchard to Oosterhout | 4,916.16 mi (7,911.79 km) |
| Port Orchard to Oosterwolde | 4,873.17 mi (7,842.60 km) |
| Port Orchard to Oostzaan | 4,871.82 mi (7,840.44 km) |
| Port Orchard to Opmeer | 4,858.25 mi (7,818.60 km) |
| Port Orchard to Oss | 4,925.02 mi (7,926.05 km) |
| Port Orchard to Oud-Beijerland | 4,895.18 mi (7,878.03 km) |
| Port Orchard to Oudenbosch | 4,911.12 mi (7,903.68 km) |
