| Bad Homburg to Navodari | 1,018.82 mi (1,639.63 km) |
| Bad Homburg to Negresti-Oas | 689.43 mi (1,109.53 km) |
| Bad Homburg to Nehoiu | 885.26 mi (1,424.69 km) |
| Bad Homburg to Ocna Mures | 747.86 mi (1,203.57 km) |
| Bad Homburg to Odobesti | 904.69 mi (1,455.96 km) |
| Bad Homburg to Odorheiu Secuiesc | 812.03 mi (1,306.84 km) |
| Bad Homburg to Oltenita | 944.13 mi (1,519.43 km) |
| Bad Homburg to Onesti | 877.10 mi (1,411.56 km) |
| Bad Homburg to Oradea | 644.70 mi (1,037.55 km) |
| Bad Homburg to Orastie | 737.33 mi (1,186.62 km) |
| Bad Homburg to Oravita | 705.07 mi (1,134.71 km) |
| Bad Homburg to Orsova | 746.05 mi (1,200.65 km) |
| Bad Homburg to Otelu Rosu | 713.85 mi (1,148.83 km) |
| Bad Homburg to Otopeni | 903.31 mi (1,453.74 km) |
| Bad Homburg to Ovidiu | 1,018.36 mi (1,638.89 km) |
