| Mons to Navodari | 1,222.10 mi (1,966.79 km) |
| Mons to Negresti-Oas | 895.05 mi (1,440.44 km) |
| Mons to Nehoiu | 1,088.79 mi (1,752.23 km) |
| Mons to Ocna Mures | 951.75 mi (1,531.69 km) |
| Mons to Odobesti | 1,109.30 mi (1,785.24 km) |
| Mons to Odorheiu Secuiesc | 1,016.60 mi (1,636.05 km) |
| Mons to Oltenita | 1,145.16 mi (1,842.96 km) |
| Mons to Onesti | 1,082.18 mi (1,741.60 km) |
| Mons to Oradea | 848.75 mi (1,365.93 km) |
| Mons to Orastie | 939.33 mi (1,511.71 km) |
| Mons to Oravita | 901.86 mi (1,451.40 km) |
| Mons to Orsova | 942.90 mi (1,517.45 km) |
| Mons to Otelu Rosu | 913.71 mi (1,470.47 km) |
| Mons to Otopeni | 1,104.89 mi (1,778.14 km) |
| Mons to Ovidiu | 1,221.52 mi (1,965.84 km) |
