| Thessaloniki to Octeville | 1,340.79 mi (2,157.79 km) |
| Thessaloniki to Oignies | 1,173.78 mi (1,889.02 km) |
| Thessaloniki to Oissel | 1,218.61 mi (1,961.17 km) |
| Thessaloniki to Olivet | 1,149.46 mi (1,849.88 km) |
| Thessaloniki to Ollioules | 894.05 mi (1,438.83 km) |
| Thessaloniki to Olonne-sur-Mer | 1,295.57 mi (2,085.02 km) |
| Thessaloniki to Oloron-Sainte-Marie | 1,219.00 mi (1,961.79 km) |
| Thessaloniki to Onet Village | 1,064.59 mi (1,713.29 km) |
| Thessaloniki to Onnaing | 1,147.66 mi (1,846.97 km) |
| Thessaloniki to Orange | 953.80 mi (1,534.99 km) |
| Thessaloniki to Orchies | 1,164.22 mi (1,873.63 km) |
| Thessaloniki to Orleans | 1,149.91 mi (1,850.61 km) |
| Thessaloniki to Orly | 1,148.67 mi (1,848.60 km) |
| Thessaloniki to Ormesson-sur-Marne | 1,143.58 mi (1,840.41 km) |
| Thessaloniki to Orsay | 1,156.24 mi (1,860.79 km) |
