| Winterthur to Nasaud | 732.26 mi (1,178.45 km) |
| Winterthur to Navodari | 977.91 mi (1,573.79 km) |
| Winterthur to Negresti-Oas | 683.01 mi (1,099.20 km) |
| Winterthur to Nehoiu | 848.20 mi (1,365.05 km) |
| Winterthur to Ocna Mures | 716.70 mi (1,153.42 km) |
| Winterthur to Odobesti | 876.14 mi (1,410.01 km) |
| Winterthur to Odorheiu Secuiesc | 785.08 mi (1,263.46 km) |
| Winterthur to Oltenita | 892.11 mi (1,435.71 km) |
| Winterthur to Onesti | 854.38 mi (1,374.99 km) |
| Winterthur to Oradea | 618.28 mi (995.02 km) |
| Winterthur to Orastie | 694.40 mi (1,117.52 km) |
| Winterthur to Oravita | 640.87 mi (1,031.37 km) |
| Winterthur to Orsova | 681.09 mi (1,096.12 km) |
| Winterthur to Otelu Rosu | 661.24 mi (1,064.16 km) |
| Winterthur to Otopeni | 854.56 mi (1,375.28 km) |
