| North Liberty to Octeville | 4,111.21 mi (6,616.35 km) |
| North Liberty to Oignies | 4,257.18 mi (6,851.27 km) |
| North Liberty to Oissel | 4,226.67 mi (6,802.16 km) |
| North Liberty to Olivet | 4,312.46 mi (6,940.23 km) |
| North Liberty to Ollioules | 4,655.63 mi (7,492.51 km) |
| North Liberty to Olonne-sur-Mer | 4,215.23 mi (6,783.75 km) |
| North Liberty to Oloron-Sainte-Marie | 4,387.47 mi (7,060.96 km) |
| North Liberty to Onet Village | 4,474.35 mi (7,200.77 km) |
| North Liberty to Onnaing | 4,282.65 mi (6,892.26 km) |
| North Liberty to Orange | 4,572.98 mi (7,359.49 km) |
| North Liberty to Orchies | 4,266.29 mi (6,865.93 km) |
| North Liberty to Orleans | 4,311.34 mi (6,938.43 km) |
| North Liberty to Orly | 4,298.56 mi (6,917.86 km) |
| North Liberty to Ormesson-sur-Marne | 4,302.57 mi (6,924.31 km) |
| North Liberty to Orsay | 4,292.39 mi (6,907.93 km) |
