| Buckley to Oerlinghausen | 499.94 mi (804.57 km) |
| Buckley to Oestrich-Winkel | 523.23 mi (842.06 km) |
| Buckley to Offenburg | 579.58 mi (932.74 km) |
| Buckley to Oftersheim | 567.83 mi (913.84 km) |
| Buckley to Ohrdruf | 608.64 mi (979.51 km) |
| Buckley to Ohringen | 609.11 mi (980.27 km) |
| Buckley to Olbernhau | 719.03 mi (1,157.17 km) |
| Buckley to Olching | 716.17 mi (1,152.57 km) |
| Buckley to Oldenburg | 467.66 mi (752.63 km) |
| Buckley to Oldenburg in Holstein | 575.24 mi (925.75 km) |
| Buckley to Olfen | 451.78 mi (727.08 km) |
| Buckley to Olpe | 486.27 mi (782.58 km) |
| Buckley to Olsberg | 504.57 mi (812.03 km) |
| Buckley to Oranienburg | 678.44 mi (1,091.85 km) |
| Buckley to Ortenberg | 553.60 mi (890.94 km) |
