| Heumen to Navodari | 1,164.35 mi (1,873.84 km) |
| Heumen to Negresti-Oas | 826.24 mi (1,329.71 km) |
| Heumen to Nehoiu | 1,030.70 mi (1,658.75 km) |
| Heumen to Ocna Mures | 893.00 mi (1,437.14 km) |
| Heumen to Odobesti | 1,046.83 mi (1,684.71 km) |
| Heumen to Odorheiu Secuiesc | 954.75 mi (1,536.52 km) |
| Heumen to Oltenita | 1,093.87 mi (1,760.41 km) |
| Heumen to Onesti | 1,017.34 mi (1,637.24 km) |
| Heumen to Oradea | 789.99 mi (1,271.36 km) |
| Heumen to Orastie | 886.40 mi (1,426.52 km) |
| Heumen to Oravita | 860.05 mi (1,384.11 km) |
| Heumen to Orsova | 900.82 mi (1,449.73 km) |
| Heumen to Otelu Rosu | 865.93 mi (1,393.58 km) |
| Heumen to Otopeni | 1,052.39 mi (1,693.66 km) |
| Heumen to Ovidiu | 1,164.17 mi (1,873.55 km) |
