| Dusseldorf to Navodari | 1,114.84 mi (1,794.16 km) |
| Dusseldorf to Negresti-Oas | 779.33 mi (1,254.21 km) |
| Dusseldorf to Nehoiu | 981.15 mi (1,579.01 km) |
| Dusseldorf to Ocna Mures | 843.45 mi (1,357.40 km) |
| Dusseldorf to Odobesti | 998.39 mi (1,606.76 km) |
| Dusseldorf to Odorheiu Secuiesc | 906.05 mi (1,458.14 km) |
| Dusseldorf to Oltenita | 1,042.90 mi (1,678.38 km) |
| Dusseldorf to Onesti | 969.51 mi (1,560.27 km) |
| Dusseldorf to Oradea | 740.29 mi (1,191.38 km) |
| Dusseldorf to Orastie | 835.55 mi (1,344.68 km) |
| Dusseldorf to Oravita | 807.21 mi (1,299.07 km) |
| Dusseldorf to Orsova | 848.07 mi (1,364.83 km) |
| Dusseldorf to Otelu Rosu | 814.07 mi (1,310.11 km) |
| Dusseldorf to Otopeni | 1,001.63 mi (1,611.97 km) |
| Dusseldorf to Ovidiu | 1,114.56 mi (1,793.72 km) |
