| Somersworth to Octeville | 3,208.00 mi (5,162.77 km) |
| Somersworth to Oignies | 3,379.47 mi (5,438.73 km) |
| Somersworth to Oissel | 3,329.72 mi (5,358.66 km) |
| Somersworth to Olivet | 3,402.97 mi (5,476.54 km) |
| Somersworth to Ollioules | 3,717.69 mi (5,983.05 km) |
| Somersworth to Olonne-sur-Mer | 3,279.89 mi (5,278.48 km) |
| Somersworth to Oloron-Sainte-Marie | 3,426.64 mi (5,514.65 km) |
| Somersworth to Onet Village | 3,534.57 mi (5,688.34 km) |
| Somersworth to Onnaing | 3,406.25 mi (5,481.82 km) |
| Somersworth to Orange | 3,639.50 mi (5,857.21 km) |
| Somersworth to Orchies | 3,389.55 mi (5,454.96 km) |
| Somersworth to Orleans | 3,402.27 mi (5,475.42 km) |
| Somersworth to Orly | 3,399.92 mi (5,471.64 km) |
| Somersworth to Ormesson-sur-Marne | 3,404.90 mi (5,479.66 km) |
| Somersworth to Orsay | 3,392.53 mi (5,459.74 km) |
