| Siegen to Octeville | 435.14 mi (700.28 km) |
| Siegen to Oignies | 221.74 mi (356.86 km) |
| Siegen to Oissel | 324.65 mi (522.48 km) |
| Siegen to Olivet | 345.11 mi (555.40 km) |
| Siegen to Ollioules | 544.66 mi (876.55 km) |
| Siegen to Olonne-sur-Mer | 537.30 mi (864.70 km) |
| Siegen to Oloron-Sainte-Marie | 667.72 mi (1,074.59 km) |
| Siegen to Onet Village | 515.98 mi (830.38 km) |
| Siegen to Onnaing | 196.61 mi (316.41 km) |
| Siegen to Orange | 489.35 mi (787.54 km) |
| Siegen to Orchies | 210.81 mi (339.27 km) |
| Siegen to Orleans | 343.12 mi (552.20 km) |
| Siegen to Orly | 290.95 mi (468.24 km) |
| Siegen to Ormesson-sur-Marne | 283.81 mi (456.75 km) |
| Siegen to Orsay | 300.54 mi (483.68 km) |
