| Seligenstadt to Navodari | 999.74 mi (1,608.93 km) |
| Seligenstadt to Negresti-Oas | 671.65 mi (1,080.92 km) |
| Seligenstadt to Nehoiu | 866.24 mi (1,394.08 km) |
| Seligenstadt to Ocna Mures | 728.94 mi (1,173.12 km) |
| Seligenstadt to Odobesti | 886.07 mi (1,425.99 km) |
| Seligenstadt to Odorheiu Secuiesc | 793.39 mi (1,276.83 km) |
| Seligenstadt to Oltenita | 924.57 mi (1,487.95 km) |
| Seligenstadt to Onesti | 858.74 mi (1,382.01 km) |
| Seligenstadt to Oradea | 625.83 mi (1,007.17 km) |
| Seligenstadt to Orastie | 717.92 mi (1,155.38 km) |
| Seligenstadt to Oravita | 684.96 mi (1,102.34 km) |
| Seligenstadt to Orsova | 725.96 mi (1,168.31 km) |
| Seligenstadt to Otelu Rosu | 694.08 mi (1,117.01 km) |
| Seligenstadt to Otopeni | 883.84 mi (1,422.41 km) |
| Seligenstadt to Ovidiu | 999.25 mi (1,608.13 km) |
