| Swallownest to Octeville | 258.45 mi (415.94 km) |
| Swallownest to Oignies | 271.63 mi (437.14 km) |
| Swallownest to Oissel | 296.66 mi (477.44 km) |
| Swallownest to Olivet | 405.27 mi (652.21 km) |
| Swallownest to Ollioules | 778.67 mi (1,253.15 km) |
| Swallownest to Olonne-sur-Mer | 472.06 mi (759.71 km) |
| Swallownest to Oloron-Sainte-Marie | 703.31 mi (1,131.87 km) |
| Swallownest to Onet Village | 646.37 mi (1,040.24 km) |
| Swallownest to Onnaing | 293.71 mi (472.68 km) |
| Swallownest to Orange | 695.28 mi (1,118.94 km) |
| Swallownest to Orchies | 278.68 mi (448.49 km) |
| Swallownest to Orleans | 402.88 mi (648.37 km) |
| Swallownest to Orly | 357.51 mi (575.36 km) |
| Swallownest to Ormesson-sur-Marne | 357.81 mi (575.83 km) |
| Swallownest to Orsay | 356.48 mi (573.69 km) |
