| Prestonpans to Octeville | 440.98 mi (709.69 km) |
| Prestonpans to Oignies | 451.97 mi (727.38 km) |
| Prestonpans to Oissel | 487.57 mi (784.66 km) |
| Prestonpans to Olivet | 596.15 mi (959.40 km) |
| Prestonpans to Ollioules | 967.99 mi (1,557.83 km) |
| Prestonpans to Olonne-sur-Mer | 653.11 mi (1,051.07 km) |
| Prestonpans to Oloron-Sainte-Marie | 888.16 mi (1,429.36 km) |
| Prestonpans to Onet Village | 837.28 mi (1,347.47 km) |
| Prestonpans to Onnaing | 470.72 mi (757.55 km) |
| Prestonpans to Orange | 885.24 mi (1,424.66 km) |
| Prestonpans to Orchies | 457.35 mi (736.03 km) |
| Prestonpans to Orleans | 593.74 mi (955.53 km) |
| Prestonpans to Orly | 546.98 mi (880.28 km) |
| Prestonpans to Ormesson-sur-Marne | 546.85 mi (880.08 km) |
| Prestonpans to Orsay | 546.43 mi (879.40 km) |
