| Big Spring to Octeville | 4,958.96 mi (7,980.67 km) |
| Big Spring to Oignies | 5,107.76 mi (8,220.15 km) |
| Big Spring to Oissel | 5,075.39 mi (8,168.06 km) |
| Big Spring to Olivet | 5,159.67 mi (8,303.69 km) |
| Big Spring to Ollioules | 5,498.11 mi (8,848.35 km) |
| Big Spring to Olonne-sur-Mer | 5,057.44 mi (8,139.17 km) |
| Big Spring to Oloron-Sainte-Marie | 5,222.96 mi (8,405.54 km) |
| Big Spring to Onet Village | 5,316.05 mi (8,555.35 km) |
| Big Spring to Onnaing | 5,133.34 mi (8,261.32 km) |
| Big Spring to Orange | 5,416.31 mi (8,716.72 km) |
| Big Spring to Orchies | 5,116.94 mi (8,234.93 km) |
| Big Spring to Orleans | 5,158.62 mi (8,301.99 km) |
| Big Spring to Orly | 5,147.20 mi (8,283.62 km) |
| Big Spring to Ormesson-sur-Marne | 5,151.33 mi (8,290.26 km) |
| Big Spring to Orsay | 5,140.87 mi (8,273.43 km) |
