| Smithville to Octeville | 4,335.58 mi (6,977.45 km) |
| Smithville to Oignies | 4,482.03 mi (7,213.13 km) |
| Smithville to Oissel | 4,451.23 mi (7,163.56 km) |
| Smithville to Olivet | 4,536.74 mi (7,301.18 km) |
| Smithville to Ollioules | 4,878.95 mi (7,851.92 km) |
| Smithville to Olonne-sur-Mer | 4,438.45 mi (7,143.00 km) |
| Smithville to Oloron-Sainte-Marie | 4,609.18 mi (7,417.76 km) |
| Smithville to Onet Village | 4,697.49 mi (7,559.88 km) |
| Smithville to Onnaing | 4,507.51 mi (7,254.13 km) |
| Smithville to Orange | 4,796.48 mi (7,719.19 km) |
| Smithville to Orchies | 4,491.14 mi (7,227.80 km) |
| Smithville to Orleans | 4,535.63 mi (7,299.39 km) |
| Smithville to Orly | 4,523.11 mi (7,279.24 km) |
| Smithville to Ormesson-sur-Marne | 4,527.13 mi (7,285.72 km) |
| Smithville to Orsay | 4,516.91 mi (7,269.26 km) |
