| Union City to Octeville | 5,399.57 mi (8,689.77 km) |
| Union City to Oignies | 5,496.65 mi (8,846.00 km) |
| Union City to Oissel | 5,498.16 mi (8,848.44 km) |
| Union City to Olivet | 5,598.73 mi (9,010.29 km) |
| Union City to Ollioules | 5,971.24 mi (9,609.79 km) |
| Union City to Olonne-sur-Mer | 5,548.68 mi (8,929.74 km) |
| Union City to Oloron-Sainte-Marie | 5,755.62 mi (9,262.78 km) |
| Union City to Onet Village | 5,802.14 mi (9,337.63 km) |
| Union City to Onnaing | 5,518.37 mi (8,880.95 km) |
| Union City to Orange | 5,884.98 mi (9,470.96 km) |
| Union City to Orchies | 5,503.62 mi (8,857.22 km) |
| Union City to Orleans | 5,597.00 mi (9,007.50 km) |
| Union City to Orly | 5,568.29 mi (8,961.30 km) |
| Union City to Ormesson-sur-Marne | 5,570.51 mi (8,964.87 km) |
| Union City to Orsay | 5,564.45 mi (8,955.12 km) |
