| Bletchley to Oerlinghausen | 399.70 mi (643.26 km) |
| Bletchley to Oestrich-Winkel | 403.62 mi (649.56 km) |
| Bletchley to Offenburg | 453.51 mi (729.86 km) |
| Bletchley to Oftersheim | 445.91 mi (717.63 km) |
| Bletchley to Ohrdruf | 500.06 mi (804.77 km) |
| Bletchley to Ohringen | 487.97 mi (785.31 km) |
| Bletchley to Olbernhau | 613.11 mi (986.70 km) |
| Bletchley to Olching | 593.92 mi (955.81 km) |
| Bletchley to Oldenburg | 383.72 mi (617.54 km) |
| Bletchley to Oldenburg in Holstein | 506.32 mi (814.85 km) |
| Bletchley to Olfen | 346.67 mi (557.92 km) |
| Bletchley to Olpe | 374.27 mi (602.33 km) |
| Bletchley to Olsberg | 397.09 mi (639.06 km) |
| Bletchley to Oranienburg | 590.63 mi (950.52 km) |
| Bletchley to Ortenberg | 438.43 mi (705.59 km) |
