| Port Orchard to Oberkirch | 5,174.21 mi (8,327.09 km) |
| Port Orchard to Obernburg am Main | 5,122.63 mi (8,244.08 km) |
| Port Orchard to Obernkirchen | 4,979.55 mi (8,013.80 km) |
| Port Orchard to Oberschleissheim | 5,273.17 mi (8,486.34 km) |
| Port Orchard to Oberstdorf | 5,293.29 mi (8,518.73 km) |
| Port Orchard to Obertraubling | 5,243.82 mi (8,439.12 km) |
| Port Orchard to Obertshausen | 5,102.11 mi (8,211.06 km) |
| Port Orchard to Oberursel | 5,088.10 mi (8,188.51 km) |
| Port Orchard to Ochsenfurt | 5,155.30 mi (8,296.65 km) |
| Port Orchard to Ochsenhausen | 5,246.07 mi (8,442.74 km) |
| Port Orchard to Ochtrup | 4,939.20 mi (7,948.87 km) |
| Port Orchard to Odenthal | 5,005.36 mi (8,055.34 km) |
| Port Orchard to Oelde | 4,982.93 mi (8,019.25 km) |
| Port Orchard to Oelsnitz | 5,156.73 mi (8,298.96 km) |
| Port Orchard to Oer-Erkenschwick | 4,973.22 mi (8,003.63 km) |
