| Senica to Octeville | 859.22 mi (1,382.77 km) |
| Senica to Oignies | 654.62 mi (1,053.52 km) |
| Senica to Oissel | 737.56 mi (1,186.99 km) |
| Senica to Olivet | 712.26 mi (1,146.27 km) |
| Senica to Ollioules | 672.12 mi (1,081.67 km) |
| Senica to Olonne-sur-Mer | 901.31 mi (1,450.53 km) |
| Senica to Oloron-Sainte-Marie | 940.21 mi (1,513.12 km) |
| Senica to Onet Village | 761.37 mi (1,225.31 km) |
| Senica to Onnaing | 627.61 mi (1,010.03 km) |
| Senica to Orange | 674.39 mi (1,085.32 km) |
| Senica to Orchies | 643.69 mi (1,035.92 km) |
| Senica to Orleans | 711.40 mi (1,144.89 km) |
| Senica to Orly | 681.58 mi (1,096.90 km) |
| Senica to Ormesson-sur-Marne | 674.72 mi (1,085.86 km) |
| Senica to Orsay | 691.20 mi (1,112.38 km) |
