| Downham Market to Oberkirch | 438.84 mi (706.25 km) |
| Downham Market to Obernburg am Main | 423.64 mi (681.78 km) |
| Downham Market to Obernkirchen | 368.16 mi (592.49 km) |
| Downham Market to Oberschleissheim | 575.58 mi (926.31 km) |
| Downham Market to Oberstdorf | 566.12 mi (911.08 km) |
| Downham Market to Obertraubling | 571.56 mi (919.84 km) |
| Downham Market to Obertshausen | 404.00 mi (650.18 km) |
| Downham Market to Oberursel | 389.51 mi (626.86 km) |
| Downham Market to Ochsenfurt | 466.00 mi (749.96 km) |
| Downham Market to Ochsenhausen | 524.22 mi (843.66 km) |
| Downham Market to Ochtrup | 287.85 mi (463.24 km) |
| Downham Market to Odenthal | 306.88 mi (493.88 km) |
| Downham Market to Oelde | 332.57 mi (535.22 km) |
| Downham Market to Oelsnitz | 527.74 mi (849.31 km) |
| Downham Market to Oer-Erkenschwick | 298.36 mi (480.16 km) |
