| Saint-Brieuc to Navodari | 1,511.31 mi (2,432.22 km) |
| Saint-Brieuc to Negresti-Oas | 1,201.22 mi (1,933.17 km) |
| Saint-Brieuc to Nehoiu | 1,380.22 mi (2,221.25 km) |
| Saint-Brieuc to Ocna Mures | 1,246.19 mi (2,005.55 km) |
| Saint-Brieuc to Odobesti | 1,405.70 mi (2,262.26 km) |
| Saint-Brieuc to Odorheiu Secuiesc | 1,313.56 mi (2,113.97 km) |
| Saint-Brieuc to Oltenita | 1,427.04 mi (2,296.60 km) |
| Saint-Brieuc to Onesti | 1,381.66 mi (2,223.56 km) |
| Saint-Brieuc to Oradea | 1,145.19 mi (1,843.00 km) |
| Saint-Brieuc to Orastie | 1,227.08 mi (1,974.79 km) |
| Saint-Brieuc to Oravita | 1,176.22 mi (1,892.94 km) |
| Saint-Brieuc to Orsova | 1,216.50 mi (1,957.76 km) |
| Saint-Brieuc to Otelu Rosu | 1,195.58 mi (1,924.10 km) |
| Saint-Brieuc to Otopeni | 1,389.00 mi (2,235.38 km) |
| Saint-Brieuc to Ovidiu | 1,510.21 mi (2,430.45 km) |
