| Letterkenny to Blumberg | 852.76 mi (1,372.38 km) |
| Letterkenny to Bobenheim-Roxheim | 772.13 mi (1,242.62 km) |
| Letterkenny to Bobingen | 915.80 mi (1,473.84 km) |
| Letterkenny to Boblingen | 832.68 mi (1,340.08 km) |
| Letterkenny to Bocholt | 627.49 mi (1,009.85 km) |
| Letterkenny to Bochum | 661.30 mi (1,064.25 km) |
| Letterkenny to Bockenem | 759.29 mi (1,221.97 km) |
| Letterkenny to Bockhorn | 643.97 mi (1,036.36 km) |
| Letterkenny to Bogen | 959.44 mi (1,544.06 km) |
| Letterkenny to Bohl-Iggelheim | 778.69 mi (1,253.18 km) |
| Letterkenny to Bohmte | 678.83 mi (1,092.47 km) |
| Letterkenny to Boizenburg | 751.64 mi (1,209.65 km) |
| Letterkenny to Bonen | 678.57 mi (1,092.06 km) |
| Letterkenny to Bonn | 682.06 mi (1,097.67 km) |
| Letterkenny to Bopfingen | 874.50 mi (1,407.37 km) |
