| Silleda to Octeville | 572.66 mi (921.62 km) |
| Silleda to Oignies | 754.98 mi (1,215.03 km) |
| Silleda to Oissel | 639.98 mi (1,029.95 km) |
| Silleda to Olivet | 607.48 mi (977.64 km) |
| Silleda to Ollioules | 712.23 mi (1,146.23 km) |
| Silleda to Olonne-sur-Mer | 413.53 mi (665.51 km) |
| Silleda to Oloron-Sainte-Marie | 387.09 mi (622.96 km) |
| Silleda to Onet Village | 553.96 mi (891.52 km) |
| Silleda to Onnaing | 771.77 mi (1,242.04 km) |
| Silleda to Orange | 661.35 mi (1,064.33 km) |
| Silleda to Orchies | 763.60 mi (1,228.89 km) |
| Silleda to Orleans | 609.23 mi (980.47 km) |
| Silleda to Orly | 660.09 mi (1,062.30 km) |
| Silleda to Ormesson-sur-Marne | 667.17 mi (1,073.71 km) |
| Silleda to Orsay | 650.63 mi (1,047.08 km) |
