| Solothurn to Octeville | 452.15 mi (727.66 km) |
| Solothurn to Oignies | 305.03 mi (490.91 km) |
| Solothurn to Oissel | 330.46 mi (531.82 km) |
| Solothurn to Olivet | 266.44 mi (428.80 km) |
| Solothurn to Ollioules | 293.42 mi (472.22 km) |
| Solothurn to Olonne-sur-Mer | 441.77 mi (710.96 km) |
| Solothurn to Oloron-Sainte-Marie | 483.60 mi (778.29 km) |
| Solothurn to Onet Village | 308.83 mi (497.01 km) |
| Solothurn to Onnaing | 282.90 mi (455.28 km) |
| Solothurn to Orange | 250.02 mi (402.36 km) |
| Solothurn to Orchies | 297.74 mi (479.16 km) |
| Solothurn to Orleans | 266.42 mi (428.76 km) |
| Solothurn to Orly | 260.04 mi (418.50 km) |
| Solothurn to Ormesson-sur-Marne | 255.04 mi (410.45 km) |
| Solothurn to Orsay | 267.62 mi (430.69 km) |
