| Bostonia to Oberkirch | 5,874.77 mi (9,454.53 km) |
| Bostonia to Obernburg am Main | 5,841.93 mi (9,401.67 km) |
| Bostonia to Obernkirchen | 5,718.84 mi (9,203.58 km) |
| Bostonia to Oberschleissheim | 5,997.06 mi (9,651.34 km) |
| Bostonia to Oberstdorf | 6,000.77 mi (9,657.31 km) |
| Bostonia to Obertraubling | 5,977.72 mi (9,620.20 km) |
| Bostonia to Obertshausen | 5,821.13 mi (9,368.21 km) |
| Bostonia to Oberursel | 5,806.47 mi (9,344.62 km) |
| Bostonia to Ochsenfurt | 5,879.58 mi (9,462.27 km) |
| Bostonia to Ochsenhausen | 5,956.53 mi (9,586.11 km) |
| Bostonia to Ochtrup | 5,665.29 mi (9,117.41 km) |
| Bostonia to Odenthal | 5,720.76 mi (9,206.67 km) |
| Bostonia to Oelde | 5,712.19 mi (9,192.89 km) |
| Bostonia to Oelsnitz | 5,901.84 mi (9,498.10 km) |
| Bostonia to Oer-Erkenschwick | 5,694.83 mi (9,164.95 km) |
