| Winterthur to Oerlinghausen | 308.71 mi (496.82 km) |
| Winterthur to Oestrich-Winkel | 175.97 mi (283.19 km) |
| Winterthur to Offenburg | 76.32 mi (122.82 km) |
| Winterthur to Oftersheim | 129.49 mi (208.39 km) |
| Winterthur to Ohrdruf | 247.18 mi (397.80 km) |
| Winterthur to Ohringen | 122.75 mi (197.55 km) |
| Winterthur to Olbernhau | 302.09 mi (486.17 km) |
| Winterthur to Olching | 129.40 mi (208.25 km) |
| Winterthur to Oldenburg | 390.69 mi (628.75 km) |
| Winterthur to Oldenburg in Holstein | 479.14 mi (771.10 km) |
| Winterthur to Olfen | 297.57 mi (478.89 km) |
| Winterthur to Olpe | 246.38 mi (396.51 km) |
| Winterthur to Olsberg | 266.31 mi (428.59 km) |
| Winterthur to Oranienburg | 414.22 mi (666.61 km) |
| Winterthur to Ortenberg | 197.95 mi (318.57 km) |
