| Borehamwood to Nasaud | 1,142.43 mi (1,838.56 km) |
| Borehamwood to Navodari | 1,417.29 mi (2,280.90 km) |
| Borehamwood to Negresti-Oas | 1,084.23 mi (1,744.90 km) |
| Borehamwood to Nehoiu | 1,283.67 mi (2,065.87 km) |
| Borehamwood to Ocna Mures | 1,146.14 mi (1,844.54 km) |
| Borehamwood to Odobesti | 1,302.22 mi (2,095.73 km) |
| Borehamwood to Odorheiu Secuiesc | 1,209.69 mi (1,946.81 km) |
| Borehamwood to Oltenita | 1,342.63 mi (2,160.76 km) |
| Borehamwood to Onesti | 1,273.86 mi (2,050.08 km) |
| Borehamwood to Oradea | 1,042.94 mi (1,678.45 km) |
| Borehamwood to Orastie | 1,135.96 mi (1,828.16 km) |
| Borehamwood to Oravita | 1,101.49 mi (1,772.67 km) |
| Borehamwood to Orsova | 1,142.53 mi (1,838.72 km) |
| Borehamwood to Otelu Rosu | 1,111.91 mi (1,789.45 km) |
| Borehamwood to Otopeni | 1,301.91 mi (2,095.23 km) |
