| Eupen to Navodari | 1,135.40 mi (1,827.24 km) |
| Eupen to Negresti-Oas | 805.19 mi (1,295.82 km) |
| Eupen to Nehoiu | 1,001.85 mi (1,612.32 km) |
| Eupen to Ocna Mures | 864.44 mi (1,391.19 km) |
| Eupen to Odobesti | 1,021.17 mi (1,643.42 km) |
| Eupen to Odorheiu Secuiesc | 928.53 mi (1,494.33 km) |
| Eupen to Oltenita | 1,060.40 mi (1,706.55 km) |
| Eupen to Onesti | 993.42 mi (1,598.76 km) |
| Eupen to Oradea | 761.28 mi (1,225.16 km) |
| Eupen to Orastie | 853.75 mi (1,373.98 km) |
| Eupen to Oravita | 820.08 mi (1,319.80 km) |
| Eupen to Orsova | 861.11 mi (1,385.81 km) |
| Eupen to Otelu Rosu | 829.79 mi (1,335.43 km) |
| Eupen to Otopeni | 1,019.68 mi (1,641.02 km) |
| Eupen to Ovidiu | 1,134.93 mi (1,826.49 km) |
