| Pittsfield to Oberkirch | 3,772.32 mi (6,070.97 km) |
| Pittsfield to Obernburg am Main | 3,775.02 mi (6,075.30 km) |
| Pittsfield to Obernkirchen | 3,702.02 mi (5,957.83 km) |
| Pittsfield to Oberschleissheim | 3,923.08 mi (6,313.59 km) |
| Pittsfield to Oberstdorf | 3,898.24 mi (6,273.60 km) |
| Pittsfield to Obertraubling | 3,923.58 mi (6,314.39 km) |
| Pittsfield to Obertshausen | 3,755.83 mi (6,044.42 km) |
| Pittsfield to Oberursel | 3,741.50 mi (6,021.35 km) |
| Pittsfield to Ochsenfurt | 3,817.84 mi (6,144.22 km) |
| Pittsfield to Ochsenhausen | 3,863.12 mi (6,217.09 km) |
| Pittsfield to Ochtrup | 3,629.28 mi (5,840.77 km) |
| Pittsfield to Odenthal | 3,659.24 mi (5,888.98 km) |
| Pittsfield to Oelde | 3,677.02 mi (5,917.59 km) |
| Pittsfield to Oelsnitz | 3,876.44 mi (6,238.53 km) |
| Pittsfield to Oer-Erkenschwick | 3,647.32 mi (5,869.80 km) |
