| Sammamish to Opwijk | 4,917.68 mi (7,914.24 km) |
| Sammamish to Ostend | 4,871.27 mi (7,839.55 km) |
| Sammamish to Oud-Heverlee | 4,937.29 mi (7,945.81 km) |
| Sammamish to Oud-Turnhout | 4,917.67 mi (7,914.22 km) |
| Sammamish to Oudenaarde | 4,909.60 mi (7,901.24 km) |
| Sammamish to Oudenburg | 4,875.69 mi (7,846.67 km) |
| Sammamish to Oupeye | 4,968.55 mi (7,996.12 km) |
| Sammamish to Overijse | 4,936.81 mi (7,945.02 km) |
| Sammamish to Overpelt | 4,933.98 mi (7,940.47 km) |
| Sammamish to Paal | 4,938.11 mi (7,947.12 km) |
| Sammamish to Peer | 4,939.66 mi (7,949.62 km) |
| Sammamish to Pepinster | 4,980.92 mi (8,016.02 km) |
| Sammamish to Peruwelz | 4,927.95 mi (7,930.78 km) |
| Sammamish to Perwez | 4,952.87 mi (7,970.87 km) |
| Sammamish to Philippeville | 4,970.33 mi (7,998.98 km) |
