| Great Sankey to Octeville | 263.62 mi (424.25 km) |
| Great Sankey to Oignies | 313.44 mi (504.44 km) |
| Great Sankey to Oissel | 322.67 mi (519.29 km) |
| Great Sankey to Olivet | 430.44 mi (692.72 km) |
| Great Sankey to Ollioules | 807.47 mi (1,299.49 km) |
| Great Sankey to Olonne-sur-Mer | 475.23 mi (764.81 km) |
| Great Sankey to Oloron-Sainte-Marie | 710.67 mi (1,143.71 km) |
| Great Sankey to Onet Village | 666.98 mi (1,073.39 km) |
| Great Sankey to Onnaing | 337.14 mi (542.58 km) |
| Great Sankey to Orange | 722.85 mi (1,163.32 km) |
| Great Sankey to Orchies | 321.42 mi (517.28 km) |
| Great Sankey to Orleans | 428.21 mi (689.13 km) |
| Great Sankey to Orly | 388.18 mi (624.71 km) |
| Great Sankey to Ormesson-sur-Marne | 389.33 mi (626.56 km) |
| Great Sankey to Orsay | 385.96 mi (621.14 km) |
