| Grand Haven to Octeville | 3,842.17 mi (6,183.38 km) |
| Grand Haven to Oignies | 3,993.29 mi (6,426.59 km) |
| Grand Haven to Oissel | 3,959.06 mi (6,371.49 km) |
| Grand Haven to Olivet | 4,042.71 mi (6,506.11 km) |
| Grand Haven to Ollioules | 4,381.28 mi (7,051.00 km) |
| Grand Haven to Olonne-sur-Mer | 3,940.63 mi (6,341.84 km) |
| Grand Haven to Oloron-Sainte-Marie | 4,108.76 mi (6,612.41 km) |
| Grand Haven to Onet Village | 4,199.40 mi (6,758.28 km) |
| Grand Haven to Onnaing | 4,019.08 mi (6,468.08 km) |
| Grand Haven to Orange | 4,299.31 mi (6,919.07 km) |
| Grand Haven to Orchies | 4,002.61 mi (6,441.58 km) |
| Grand Haven to Orleans | 4,041.66 mi (6,504.43 km) |
| Grand Haven to Orly | 4,030.80 mi (6,486.94 km) |
| Grand Haven to Ormesson-sur-Marne | 4,035.00 mi (6,493.70 km) |
| Grand Haven to Orsay | 4,024.39 mi (6,476.62 km) |
