| Waltrop to Navodari | 1,098.37 mi (1,767.65 km) |
| Waltrop to Negresti-Oas | 759.67 mi (1,222.57 km) |
| Waltrop to Nehoiu | 964.75 mi (1,552.62 km) |
| Waltrop to Ocna Mures | 827.07 mi (1,331.05 km) |
| Waltrop to Odobesti | 980.52 mi (1,577.99 km) |
| Waltrop to Odorheiu Secuiesc | 888.52 mi (1,429.93 km) |
| Waltrop to Oltenita | 1,028.64 mi (1,655.43 km) |
| Waltrop to Onesti | 950.89 mi (1,530.31 km) |
| Waltrop to Oradea | 724.15 mi (1,165.41 km) |
| Waltrop to Orastie | 821.15 mi (1,321.51 km) |
| Waltrop to Oravita | 796.61 mi (1,282.02 km) |
| Waltrop to Orsova | 837.26 mi (1,347.45 km) |
| Waltrop to Otelu Rosu | 801.45 mi (1,289.81 km) |
| Waltrop to Otopeni | 987.04 mi (1,588.49 km) |
| Waltrop to Ovidiu | 1,098.23 mi (1,767.42 km) |
