| Middlesbrough to Octeville | 342.43 mi (551.09 km) |
| Middlesbrough to Oignies | 334.75 mi (538.73 km) |
| Middlesbrough to Oissel | 374.96 mi (603.44 km) |
| Middlesbrough to Olivet | 483.13 mi (777.52 km) |
| Middlesbrough to Ollioules | 852.27 mi (1,371.59 km) |
| Middlesbrough to Olonne-sur-Mer | 556.05 mi (894.87 km) |
| Middlesbrough to Oloron-Sainte-Marie | 786.96 mi (1,266.50 km) |
| Middlesbrough to Onet Village | 725.88 mi (1,168.20 km) |
| Middlesbrough to Onnaing | 353.56 mi (569.00 km) |
| Middlesbrough to Orange | 770.13 mi (1,239.40 km) |
| Middlesbrough to Orchies | 340.12 mi (547.38 km) |
| Middlesbrough to Orleans | 480.66 mi (773.55 km) |
| Middlesbrough to Orly | 431.82 mi (694.95 km) |
| Middlesbrough to Ormesson-sur-Marne | 431.38 mi (694.25 km) |
| Middlesbrough to Orsay | 431.75 mi (694.83 km) |
