| Echelon to Octeville | 3,517.10 mi (5,660.23 km) |
| Echelon to Oignies | 3,691.22 mi (5,940.45 km) |
| Echelon to Oissel | 3,639.37 mi (5,856.99 km) |
| Echelon to Olivet | 3,710.72 mi (5,971.83 km) |
| Echelon to Ollioules | 4,019.67 mi (6,469.04 km) |
| Echelon to Olonne-sur-Mer | 3,583.56 mi (5,767.18 km) |
| Echelon to Oloron-Sainte-Marie | 3,724.10 mi (5,993.36 km) |
| Echelon to Onet Village | 3,836.64 mi (6,174.48 km) |
| Echelon to Onnaing | 3,718.08 mi (5,983.67 km) |
| Echelon to Orange | 3,942.58 mi (6,344.96 km) |
| Echelon to Orchies | 3,701.39 mi (5,956.81 km) |
| Echelon to Orleans | 3,710.09 mi (5,970.81 km) |
| Echelon to Orly | 3,709.20 mi (5,969.38 km) |
| Echelon to Ormesson-sur-Marne | 3,714.29 mi (5,977.58 km) |
| Echelon to Orsay | 3,701.66 mi (5,957.24 km) |
