| Opalenica to Octeville | 804.93 mi (1,295.40 km) |
| Opalenica to Oignies | 591.48 mi (951.89 km) |
| Opalenica to Oissel | 697.90 mi (1,123.16 km) |
| Opalenica to Olivet | 711.23 mi (1,144.61 km) |
| Opalenica to Ollioules | 799.84 mi (1,287.22 km) |
| Opalenica to Olonne-sur-Mer | 906.10 mi (1,458.22 km) |
| Opalenica to Oloron-Sainte-Marie | 1,006.50 mi (1,619.81 km) |
| Opalenica to Onet Village | 836.57 mi (1,346.34 km) |
| Opalenica to Onnaing | 567.91 mi (913.97 km) |
| Opalenica to Orange | 775.30 mi (1,247.72 km) |
| Opalenica to Orchies | 580.86 mi (934.81 km) |
| Opalenica to Orleans | 709.52 mi (1,141.87 km) |
| Opalenica to Orly | 661.91 mi (1,065.24 km) |
| Opalenica to Ormesson-sur-Marne | 654.69 mi (1,053.63 km) |
| Opalenica to Orsay | 671.68 mi (1,080.97 km) |
