| Weil am Rhein to Navodari | 1,030.43 mi (1,658.31 km) |
| Weil am Rhein to Negresti-Oas | 733.84 mi (1,181.01 km) |
| Weil am Rhein to Nehoiu | 900.62 mi (1,449.41 km) |
| Weil am Rhein to Ocna Mures | 768.88 mi (1,237.39 km) |
| Weil am Rhein to Odobesti | 928.36 mi (1,494.05 km) |
| Weil am Rhein to Odorheiu Secuiesc | 837.17 mi (1,347.30 km) |
| Weil am Rhein to Oltenita | 944.65 mi (1,520.26 km) |
| Weil am Rhein to Onesti | 906.38 mi (1,458.67 km) |
| Weil am Rhein to Oradea | 670.12 mi (1,078.46 km) |
| Weil am Rhein to Orastie | 746.85 mi (1,201.94 km) |
| Weil am Rhein to Oravita | 693.35 mi (1,115.84 km) |
| Weil am Rhein to Orsova | 733.54 mi (1,180.53 km) |
| Weil am Rhein to Otelu Rosu | 713.78 mi (1,148.72 km) |
| Weil am Rhein to Otopeni | 907.11 mi (1,459.85 km) |
| Weil am Rhein to Ovidiu | 1,029.17 mi (1,656.29 km) |
