| Leighton Buzzard to Oerlinghausen | 397.07 mi (639.03 km) |
| Leighton Buzzard to Oestrich-Winkel | 399.25 mi (642.53 km) |
| Leighton Buzzard to Offenburg | 448.30 mi (721.47 km) |
| Leighton Buzzard to Oftersheim | 441.26 mi (710.14 km) |
| Leighton Buzzard to Ohrdruf | 496.66 mi (799.29 km) |
| Leighton Buzzard to Ohringen | 483.39 mi (777.95 km) |
| Leighton Buzzard to Olbernhau | 609.86 mi (981.47 km) |
| Leighton Buzzard to Olching | 589.18 mi (948.20 km) |
| Leighton Buzzard to Oldenburg | 382.31 mi (615.27 km) |
| Leighton Buzzard to Oldenburg in Holstein | 505.68 mi (813.82 km) |
| Leighton Buzzard to Olfen | 343.72 mi (553.17 km) |
| Leighton Buzzard to Olpe | 370.68 mi (596.54 km) |
| Leighton Buzzard to Olsberg | 393.87 mi (633.88 km) |
| Leighton Buzzard to Oranienburg | 588.70 mi (947.42 km) |
| Leighton Buzzard to Ortenberg | 434.49 mi (699.24 km) |
