| Cristuru Secuiesc to Octeville | 1,248.81 mi (2,009.76 km) |
| Cristuru Secuiesc to Oignies | 1,047.47 mi (1,685.75 km) |
| Cristuru Secuiesc to Oissel | 1,125.73 mi (1,811.69 km) |
| Cristuru Secuiesc to Olivet | 1,089.84 mi (1,753.92 km) |
| Cristuru Secuiesc to Ollioules | 964.38 mi (1,552.01 km) |
| Cristuru Secuiesc to Olonne-sur-Mer | 1,270.97 mi (2,045.43 km) |
| Cristuru Secuiesc to Oloron-Sainte-Marie | 1,270.68 mi (2,044.96 km) |
| Cristuru Secuiesc to Onet Village | 1,094.48 mi (1,761.39 km) |
| Cristuru Secuiesc to Onnaing | 1,020.36 mi (1,642.10 km) |
| Cristuru Secuiesc to Orange | 992.82 mi (1,597.79 km) |
| Cristuru Secuiesc to Orchies | 1,036.60 mi (1,668.25 km) |
| Cristuru Secuiesc to Orleans | 1,089.32 mi (1,753.09 km) |
| Cristuru Secuiesc to Orly | 1,065.98 mi (1,715.54 km) |
| Cristuru Secuiesc to Ormesson-sur-Marne | 1,059.40 mi (1,704.93 km) |
| Cristuru Secuiesc to Orsay | 1,075.32 mi (1,730.56 km) |
