| Hammond to Oberkirch | 4,372.43 mi (7,036.75 km) |
| Hammond to Obernburg am Main | 4,362.23 mi (7,020.33 km) |
| Hammond to Obernkirchen | 4,269.77 mi (6,871.54 km) |
| Hammond to Oberschleissheim | 4,515.04 mi (7,266.26 km) |
| Hammond to Oberstdorf | 4,500.10 mi (7,242.21 km) |
| Hammond to Obertraubling | 4,508.44 mi (7,255.63 km) |
| Hammond to Obertshausen | 4,342.16 mi (6,988.04 km) |
| Hammond to Oberursel | 4,327.49 mi (6,964.42 km) |
| Hammond to Ochsenfurt | 4,403.83 mi (7,087.28 km) |
| Hammond to Ochsenhausen | 4,461.22 mi (7,179.63 km) |
| Hammond to Ochtrup | 4,202.83 mi (6,763.81 km) |
| Hammond to Odenthal | 4,242.68 mi (6,827.94 km) |
| Hammond to Oelde | 4,251.07 mi (6,841.44 km) |
| Hammond to Oelsnitz | 4,450.25 mi (7,161.98 km) |
| Hammond to Oer-Erkenschwick | 4,225.41 mi (6,800.15 km) |
