| Altdorf to Octeville | 509.31 mi (819.65 km) |
| Altdorf to Oignies | 357.83 mi (575.88 km) |
| Altdorf to Oissel | 387.49 mi (623.60 km) |
| Altdorf to Olivet | 322.41 mi (518.87 km) |
| Altdorf to Ollioules | 291.25 mi (468.72 km) |
| Altdorf to Olonne-sur-Mer | 493.25 mi (793.81 km) |
| Altdorf to Oloron-Sainte-Marie | 517.17 mi (832.30 km) |
| Altdorf to Onet Village | 339.07 mi (545.67 km) |
| Altdorf to Onnaing | 334.61 mi (538.50 km) |
| Altdorf to Orange | 264.18 mi (425.15 km) |
| Altdorf to Orchies | 349.98 mi (563.24 km) |
| Altdorf to Orleans | 322.50 mi (519.01 km) |
| Altdorf to Orly | 317.19 mi (510.47 km) |
| Altdorf to Ormesson-sur-Marne | 312.16 mi (502.37 km) |
| Altdorf to Orsay | 324.78 mi (522.68 km) |
