| Frondenberg to Octeville | 431.94 mi (695.14 km) |
| Frondenberg to Oignies | 218.84 mi (352.19 km) |
| Frondenberg to Oissel | 328.53 mi (528.71 km) |
| Frondenberg to Olivet | 361.64 mi (582.01 km) |
| Frondenberg to Ollioules | 582.64 mi (937.67 km) |
| Frondenberg to Olonne-sur-Mer | 549.91 mi (885.00 km) |
| Frondenberg to Oloron-Sainte-Marie | 692.43 mi (1,114.36 km) |
| Frondenberg to Onet Village | 545.96 mi (878.64 km) |
| Frondenberg to Onnaing | 196.31 mi (315.92 km) |
| Frondenberg to Orange | 524.83 mi (844.63 km) |
| Frondenberg to Orchies | 208.40 mi (335.38 km) |
| Frondenberg to Orleans | 359.46 mi (578.50 km) |
| Frondenberg to Orly | 303.54 mi (488.49 km) |
| Frondenberg to Ormesson-sur-Marne | 296.62 mi (477.36 km) |
| Frondenberg to Orsay | 312.73 mi (503.29 km) |
