| Colonia to Nasaud | 4,589.51 mi (7,386.09 km) |
| Colonia to Navodari | 4,874.18 mi (7,844.23 km) |
| Colonia to Negresti-Oas | 4,528.81 mi (7,288.42 km) |
| Colonia to Nehoiu | 4,741.05 mi (7,629.99 km) |
| Colonia to Ocna Mures | 4,603.77 mi (7,409.06 km) |
| Colonia to Odobesti | 4,753.39 mi (7,649.84 km) |
| Colonia to Odorheiu Secuiesc | 4,662.83 mi (7,504.10 km) |
| Colonia to Oltenita | 4,806.73 mi (7,735.68 km) |
| Colonia to Onesti | 4,721.58 mi (7,598.65 km) |
| Colonia to Oradea | 4,501.38 mi (7,244.27 km) |
| Colonia to Orastie | 4,599.24 mi (7,401.76 km) |
| Colonia to Oravita | 4,570.57 mi (7,355.61 km) |
| Colonia to Orsova | 4,611.57 mi (7,421.60 km) |
| Colonia to Otelu Rosu | 4,578.65 mi (7,368.62 km) |
| Colonia to Otopeni | 4,765.08 mi (7,668.66 km) |
