| Leighton Buzzard to Oberkirch | 451.30 mi (726.30 km) |
| Leighton Buzzard to Obernburg am Main | 450.39 mi (724.84 km) |
| Leighton Buzzard to Obernkirchen | 415.54 mi (668.74 km) |
| Leighton Buzzard to Oberschleissheim | 597.43 mi (961.46 km) |
| Leighton Buzzard to Oberstdorf | 579.07 mi (931.93 km) |
| Leighton Buzzard to Obertraubling | 599.21 mi (964.34 km) |
| Leighton Buzzard to Obertshausen | 431.89 mi (695.07 km) |
| Leighton Buzzard to Oberursel | 417.96 mi (672.64 km) |
| Leighton Buzzard to Ochsenfurt | 493.59 mi (794.35 km) |
| Leighton Buzzard to Ochsenhausen | 540.21 mi (869.39 km) |
| Leighton Buzzard to Ochtrup | 333.99 mi (537.50 km) |
| Leighton Buzzard to Odenthal | 340.09 mi (547.32 km) |
| Leighton Buzzard to Oelde | 375.69 mi (604.62 km) |
| Leighton Buzzard to Oelsnitz | 564.59 mi (908.63 km) |
| Leighton Buzzard to Oer-Erkenschwick | 338.60 mi (544.93 km) |
