| Dillenburg to Navodari | 1,042.34 mi (1,677.48 km) |
| Dillenburg to Negresti-Oas | 708.84 mi (1,140.77 km) |
| Dillenburg to Nehoiu | 908.66 mi (1,462.35 km) |
| Dillenburg to Ocna Mures | 771.01 mi (1,240.82 km) |
| Dillenburg to Odobesti | 926.62 mi (1,491.24 km) |
| Dillenburg to Odorheiu Secuiesc | 834.14 mi (1,342.41 km) |
| Dillenburg to Oltenita | 969.64 mi (1,560.48 km) |
| Dillenburg to Onesti | 898.18 mi (1,445.48 km) |
| Dillenburg to Oradea | 667.81 mi (1,074.73 km) |
| Dillenburg to Orastie | 762.38 mi (1,226.93 km) |
| Dillenburg to Oravita | 733.40 mi (1,180.29 km) |
| Dillenburg to Orsova | 774.27 mi (1,246.06 km) |
| Dillenburg to Otelu Rosu | 740.48 mi (1,191.69 km) |
| Dillenburg to Otopeni | 928.47 mi (1,494.23 km) |
| Dillenburg to Ovidiu | 1,042.01 mi (1,676.95 km) |
