| Marousi to Octeville | 1,488.03 mi (2,394.76 km) |
| Marousi to Oignies | 1,332.15 mi (2,143.89 km) |
| Marousi to Oissel | 1,368.19 mi (2,201.88 km) |
| Marousi to Olivet | 1,291.63 mi (2,078.68 km) |
| Marousi to Ollioules | 1,002.94 mi (1,614.07 km) |
| Marousi to Olonne-sur-Mer | 1,424.16 mi (2,291.96 km) |
| Marousi to Oloron-Sainte-Marie | 1,323.07 mi (2,129.28 km) |
| Marousi to Onet Village | 1,181.28 mi (1,901.08 km) |
| Marousi to Onnaing | 1,306.69 mi (2,102.92 km) |
| Marousi to Orange | 1,071.38 mi (1,724.22 km) |
| Marousi to Orchies | 1,323.04 mi (2,129.23 km) |
| Marousi to Orleans | 1,292.35 mi (2,079.83 km) |
| Marousi to Orly | 1,297.01 mi (2,087.34 km) |
| Marousi to Ormesson-sur-Marne | 1,292.41 mi (2,079.93 km) |
| Marousi to Orsay | 1,303.97 mi (2,098.54 km) |
