| Highgate to Nasaud | 1,136.41 mi (1,828.88 km) |
| Highgate to Navodari | 1,410.91 mi (2,270.65 km) |
| Highgate to Negresti-Oas | 1,078.31 mi (1,735.37 km) |
| Highgate to Nehoiu | 1,277.32 mi (2,055.64 km) |
| Highgate to Ocna Mures | 1,139.82 mi (1,834.36 km) |
| Highgate to Odobesti | 1,296.04 mi (2,085.77 km) |
| Highgate to Odorheiu Secuiesc | 1,203.49 mi (1,936.82 km) |
| Highgate to Oltenita | 1,336.02 mi (2,150.12 km) |
| Highgate to Onesti | 1,267.78 mi (2,040.29 km) |
| Highgate to Oradea | 1,036.62 mi (1,668.28 km) |
| Highgate to Orastie | 1,129.43 mi (1,817.64 km) |
| Highgate to Oravita | 1,094.60 mi (1,761.59 km) |
| Highgate to Orsova | 1,135.65 mi (1,827.64 km) |
| Highgate to Otelu Rosu | 1,105.21 mi (1,778.66 km) |
| Highgate to Otopeni | 1,295.35 mi (2,084.67 km) |
