| Monserrat to Oberkirch | 766.15 mi (1,233.00 km) |
| Monserrat to Obernburg am Main | 866.95 mi (1,395.22 km) |
| Monserrat to Obernkirchen | 1,005.25 mi (1,617.80 km) |
| Monserrat to Oberschleissheim | 861.58 mi (1,386.59 km) |
| Monserrat to Oberstdorf | 778.40 mi (1,252.71 km) |
| Monserrat to Obertraubling | 914.85 mi (1,472.31 km) |
| Monserrat to Obertshausen | 871.48 mi (1,402.51 km) |
| Monserrat to Oberursel | 872.72 mi (1,404.51 km) |
| Monserrat to Ochsenfurt | 882.54 mi (1,420.31 km) |
| Monserrat to Ochsenhausen | 798.64 mi (1,285.29 km) |
| Monserrat to Ochtrup | 962.54 mi (1,549.06 km) |
| Monserrat to Odenthal | 888.81 mi (1,430.41 km) |
| Monserrat to Oelde | 958.65 mi (1,542.80 km) |
| Monserrat to Oelsnitz | 984.38 mi (1,584.20 km) |
| Monserrat to Oer-Erkenschwick | 928.82 mi (1,494.80 km) |
