| Abertillery to Nasaud | 1,264.83 mi (2,035.55 km) |
| Abertillery to Navodari | 1,539.14 mi (2,477.01 km) |
| Abertillery to Negresti-Oas | 1,206.69 mi (1,941.99 km) |
| Abertillery to Nehoiu | 1,405.57 mi (2,262.05 km) |
| Abertillery to Ocna Mures | 1,268.11 mi (2,040.83 km) |
| Abertillery to Odobesti | 1,424.44 mi (2,292.42 km) |
| Abertillery to Odorheiu Secuiesc | 1,331.88 mi (2,143.45 km) |
| Abertillery to Oltenita | 1,463.78 mi (2,355.73 km) |
| Abertillery to Onesti | 1,396.21 mi (2,246.98 km) |
| Abertillery to Oradea | 1,164.92 mi (1,874.76 km) |
| Abertillery to Orastie | 1,257.38 mi (2,023.56 km) |
| Abertillery to Oravita | 1,221.39 mi (1,965.64 km) |
| Abertillery to Orsova | 1,262.43 mi (2,031.69 km) |
| Abertillery to Otelu Rosu | 1,232.70 mi (1,983.84 km) |
| Abertillery to Otopeni | 1,423.23 mi (2,290.46 km) |
