| Sammamish to Octeville | 4,838.34 mi (7,786.56 km) |
| Sammamish to Oignies | 4,915.57 mi (7,910.84 km) |
| Sammamish to Oissel | 4,928.55 mi (7,931.73 km) |
| Sammamish to Olivet | 5,032.78 mi (8,099.48 km) |
| Sammamish to Ollioules | 5,409.99 mi (8,706.54 km) |
| Sammamish to Olonne-sur-Mer | 5,003.10 mi (8,051.71 km) |
| Sammamish to Oloron-Sainte-Marie | 5,221.80 mi (8,403.67 km) |
| Sammamish to Onet Village | 5,249.14 mi (8,447.67 km) |
| Sammamish to Onnaing | 4,935.60 mi (7,943.08 km) |
| Sammamish to Orange | 5,323.84 mi (8,567.89 km) |
| Sammamish to Orchies | 4,921.67 mi (7,920.67 km) |
| Sammamish to Orleans | 5,030.85 mi (8,096.37 km) |
| Sammamish to Orly | 4,996.67 mi (8,041.37 km) |
| Sammamish to Ormesson-sur-Marne | 4,998.19 mi (8,043.81 km) |
| Sammamish to Orsay | 4,993.77 mi (8,036.70 km) |
