| Port Washington to Opwijk | 3,630.91 mi (5,843.38 km) |
| Port Washington to Ostend | 3,573.28 mi (5,750.64 km) |
| Port Washington to Oud-Heverlee | 3,653.88 mi (5,880.36 km) |
| Port Washington to Oud-Turnhout | 3,654.37 mi (5,881.15 km) |
| Port Washington to Oudenaarde | 3,610.11 mi (5,809.92 km) |
| Port Washington to Oudenburg | 3,577.58 mi (5,757.55 km) |
| Port Washington to Oupeye | 3,696.68 mi (5,949.23 km) |
| Port Washington to Overijse | 3,649.74 mi (5,873.70 km) |
| Port Washington to Overpelt | 3,674.34 mi (5,913.27 km) |
| Port Washington to Paal | 3,669.08 mi (5,904.82 km) |
| Port Washington to Peer | 3,677.98 mi (5,919.14 km) |
| Port Washington to Pepinster | 3,707.44 mi (5,966.55 km) |
| Port Washington to Peruwelz | 3,617.73 mi (5,822.18 km) |
| Port Washington to Perwez | 3,665.27 mi (5,898.68 km) |
| Port Washington to Philippeville | 3,665.41 mi (5,898.91 km) |
