| Winterthur to Oberkirch | 77.44 mi (124.63 km) |
| Winterthur to Obernburg am Main | 162.85 mi (262.08 km) |
| Winterthur to Obernkirchen | 329.86 mi (530.85 km) |
| Winterthur to Oberschleissheim | 141.39 mi (227.54 km) |
| Winterthur to Oberstdorf | 72.70 mi (117.01 km) |
| Winterthur to Obertraubling | 187.89 mi (302.38 km) |
| Winterthur to Obertshausen | 177.48 mi (285.63 km) |
| Winterthur to Oberursel | 186.98 mi (300.92 km) |
| Winterthur to Ochsenfurt | 160.72 mi (258.65 km) |
| Winterthur to Ochsenhausen | 69.09 mi (111.20 km) |
| Winterthur to Ochtrup | 332.32 mi (534.82 km) |
| Winterthur to Odenthal | 254.77 mi (410.01 km) |
| Winterthur to Oelde | 300.59 mi (483.75 km) |
| Winterthur to Oelsnitz | 254.84 mi (410.12 km) |
| Winterthur to Oer-Erkenschwick | 293.82 mi (472.85 km) |
