| Donegal to Boppard | 726.36 mi (1,168.96 km) |
| Donegal to Borgentreich | 748.72 mi (1,204.95 km) |
| Donegal to Borgholzhausen | 697.23 mi (1,122.08 km) |
| Donegal to Borken | 647.72 mi (1,042.40 km) |
| Donegal to Borna | 889.69 mi (1,431.81 km) |
| Donegal to Bornheim | 685.85 mi (1,103.77 km) |
| Donegal to Bosel | 663.36 mi (1,067.57 km) |
| Donegal to Bottrop | 658.65 mi (1,060.00 km) |
| Donegal to Bovenden | 774.64 mi (1,246.66 km) |
| Donegal to Brackenheim | 824.73 mi (1,327.28 km) |
| Donegal to Brake | 678.51 mi (1,091.96 km) |
| Donegal to Brakel | 742.04 mi (1,194.19 km) |
| Donegal to Bramsche | 677.44 mi (1,090.24 km) |
| Donegal to Brand | 654.21 mi (1,052.85 km) |
| Donegal to Brand-Erbisdorf | 929.31 mi (1,495.58 km) |
