| Zionsville to Octeville | 3,980.58 mi (6,406.12 km) |
| Zionsville to Oignies | 4,138.64 mi (6,660.49 km) |
| Zionsville to Oissel | 4,099.35 mi (6,597.27 km) |
| Zionsville to Olivet | 4,179.63 mi (6,726.47 km) |
| Zionsville to Ollioules | 4,509.87 mi (7,257.94 km) |
| Zionsville to Olonne-sur-Mer | 4,069.57 mi (6,549.34 km) |
| Zionsville to Oloron-Sainte-Marie | 4,229.00 mi (6,805.92 km) |
| Zionsville to Onet Village | 4,327.18 mi (6,963.92 km) |
| Zionsville to Onnaing | 4,164.79 mi (6,702.58 km) |
| Zionsville to Orange | 4,429.27 mi (7,128.22 km) |
| Zionsville to Orchies | 4,148.21 mi (6,675.90 km) |
| Zionsville to Orleans | 4,178.71 mi (6,724.98 km) |
| Zionsville to Orly | 4,170.74 mi (6,712.16 km) |
| Zionsville to Ormesson-sur-Marne | 4,175.21 mi (6,719.35 km) |
| Zionsville to Orsay | 4,163.98 mi (6,701.28 km) |
