| Monschau to Navodari | 1,124.68 mi (1,810.00 km) |
| Monschau to Negresti-Oas | 794.86 mi (1,279.21 km) |
| Monschau to Nehoiu | 991.15 mi (1,595.10 km) |
| Monschau to Ocna Mures | 853.78 mi (1,374.02 km) |
| Monschau to Odobesti | 1,010.60 mi (1,626.40 km) |
| Monschau to Odorheiu Secuiesc | 917.95 mi (1,477.30 km) |
| Monschau to Oltenita | 1,049.55 mi (1,689.09 km) |
| Monschau to Onesti | 982.93 mi (1,581.87 km) |
| Monschau to Oradea | 750.62 mi (1,208.01 km) |
| Monschau to Orastie | 842.95 mi (1,356.59 km) |
| Monschau to Oravita | 809.11 mi (1,302.14 km) |
| Monschau to Orsova | 850.14 mi (1,368.16 km) |
| Monschau to Otelu Rosu | 818.90 mi (1,317.89 km) |
| Monschau to Otopeni | 1,008.86 mi (1,623.60 km) |
| Monschau to Ovidiu | 1,124.21 mi (1,809.24 km) |
