| Sassenburg to Navodari | 995.85 mi (1,602.67 km) |
| Sassenburg to Negresti-Oas | 649.23 mi (1,044.84 km) |
| Sassenburg to Nehoiu | 863.65 mi (1,389.91 km) |
| Sassenburg to Ocna Mures | 727.67 mi (1,171.07 km) |
| Sassenburg to Odobesti | 874.01 mi (1,406.58 km) |
| Sassenburg to Odorheiu Secuiesc | 784.14 mi (1,261.96 km) |
| Sassenburg to Oltenita | 934.69 mi (1,504.24 km) |
| Sassenburg to Onesti | 842.00 mi (1,355.07 km) |
| Sassenburg to Oradea | 627.30 mi (1,009.55 km) |
| Sassenburg to Orastie | 729.18 mi (1,173.51 km) |
| Sassenburg to Oravita | 719.62 mi (1,158.11 km) |
| Sassenburg to Orsova | 758.75 mi (1,221.09 km) |
| Sassenburg to Otelu Rosu | 716.59 mi (1,153.24 km) |
| Sassenburg to Otopeni | 892.31 mi (1,436.03 km) |
| Sassenburg to Ovidiu | 996.19 mi (1,603.21 km) |
