| Syracuse to Oberkirch | 3,864.80 mi (6,219.79 km) |
| Syracuse to Obernburg am Main | 3,863.67 mi (6,217.97 km) |
| Syracuse to Obernkirchen | 3,784.88 mi (6,091.17 km) |
| Syracuse to Oberschleissheim | 4,013.38 mi (6,458.91 km) |
| Syracuse to Oberstdorf | 3,991.44 mi (6,423.59 km) |
| Syracuse to Obertraubling | 4,011.79 mi (6,456.35 km) |
| Syracuse to Obertshausen | 3,844.19 mi (6,186.62 km) |
| Syracuse to Oberursel | 3,829.73 mi (6,163.35 km) |
| Syracuse to Ochsenfurt | 3,906.20 mi (6,286.43 km) |
| Syracuse to Ochsenhausen | 3,955.14 mi (6,365.18 km) |
| Syracuse to Ochtrup | 3,713.67 mi (5,976.58 km) |
| Syracuse to Odenthal | 3,746.58 mi (6,029.53 km) |
| Syracuse to Oelde | 3,761.65 mi (6,053.78 km) |
| Syracuse to Oelsnitz | 3,961.37 mi (6,375.20 km) |
| Syracuse to Oer-Erkenschwick | 3,733.07 mi (6,007.79 km) |
