| Sulingen to Navodari | 1,069.53 mi (1,721.24 km) |
| Sulingen to Negresti-Oas | 724.13 mi (1,165.38 km) |
| Sulingen to Nehoiu | 936.85 mi (1,507.71 km) |
| Sulingen to Ocna Mures | 800.23 mi (1,287.85 km) |
| Sulingen to Odobesti | 948.42 mi (1,526.33 km) |
| Sulingen to Odorheiu Secuiesc | 857.97 mi (1,380.77 km) |
| Sulingen to Oltenita | 1,006.23 mi (1,619.37 km) |
| Sulingen to Onesti | 916.86 mi (1,475.55 km) |
| Sulingen to Oradea | 698.97 mi (1,124.88 km) |
| Sulingen to Orastie | 799.81 mi (1,287.17 km) |
| Sulingen to Oravita | 785.81 mi (1,264.64 km) |
| Sulingen to Orsova | 825.54 mi (1,328.57 km) |
| Sulingen to Otelu Rosu | 785.17 mi (1,263.61 km) |
| Sulingen to Otopeni | 963.99 mi (1,551.39 km) |
| Sulingen to Ovidiu | 1,069.76 mi (1,721.61 km) |
