| Twickenham to Nasaud | 1,143.89 mi (1,840.91 km) |
| Twickenham to Navodari | 1,417.73 mi (2,281.61 km) |
| Twickenham to Negresti-Oas | 1,085.95 mi (1,747.66 km) |
| Twickenham to Nehoiu | 1,284.17 mi (2,066.67 km) |
| Twickenham to Ocna Mures | 1,146.74 mi (1,845.50 km) |
| Twickenham to Odobesti | 1,303.21 mi (2,097.32 km) |
| Twickenham to Odorheiu Secuiesc | 1,210.62 mi (1,948.30 km) |
| Twickenham to Oltenita | 1,342.36 mi (2,160.33 km) |
| Twickenham to Onesti | 1,275.12 mi (2,052.11 km) |
| Twickenham to Oradea | 1,043.56 mi (1,679.44 km) |
| Twickenham to Orastie | 1,135.93 mi (1,828.11 km) |
| Twickenham to Oravita | 1,100.32 mi (1,770.80 km) |
| Twickenham to Orsova | 1,141.36 mi (1,836.85 km) |
| Twickenham to Otelu Rosu | 1,111.35 mi (1,788.54 km) |
| Twickenham to Otopeni | 1,301.79 mi (2,095.02 km) |
