| Cwmbran to Nasaud | 1,259.89 mi (2,027.59 km) |
| Cwmbran to Navodari | 1,533.88 mi (2,468.54 km) |
| Cwmbran to Negresti-Oas | 1,201.83 mi (1,934.16 km) |
| Cwmbran to Nehoiu | 1,400.33 mi (2,253.61 km) |
| Cwmbran to Ocna Mures | 1,262.90 mi (2,032.44 km) |
| Cwmbran to Odobesti | 1,419.35 mi (2,284.22 km) |
| Cwmbran to Odorheiu Secuiesc | 1,326.77 mi (2,135.22 km) |
| Cwmbran to Oltenita | 1,458.32 mi (2,346.93 km) |
| Cwmbran to Onesti | 1,391.20 mi (2,238.91 km) |
| Cwmbran to Oradea | 1,159.72 mi (1,866.39 km) |
| Cwmbran to Orastie | 1,251.99 mi (2,014.88 km) |
| Cwmbran to Oravita | 1,215.69 mi (1,956.47 km) |
| Cwmbran to Orsova | 1,256.73 mi (2,022.51 km) |
| Cwmbran to Otelu Rosu | 1,227.16 mi (1,974.93 km) |
| Cwmbran to Otopeni | 1,417.80 mi (2,281.73 km) |
