| Letterkenny to Beyne-Heusay | 632.64 mi (1,018.14 km) |
| Letterkenny to Bierbeek | 592.17 mi (953.00 km) |
| Letterkenny to Bilzen | 618.37 mi (995.17 km) |
| Letterkenny to Binche | 587.97 mi (946.25 km) |
| Letterkenny to Bissegem | 537.36 mi (864.80 km) |
| Letterkenny to Blankenberge | 514.65 mi (828.24 km) |
| Letterkenny to Blegny | 633.80 mi (1,020.00 km) |
| Letterkenny to Bocholt | 609.68 mi (981.19 km) |
| Letterkenny to Boechout | 569.93 mi (917.22 km) |
| Letterkenny to Bonheiden | 576.10 mi (927.14 km) |
| Letterkenny to Boom | 568.14 mi (914.34 km) |
| Letterkenny to Boortmeerbeek | 579.19 mi (932.12 km) |
| Letterkenny to Borgerhout | 566.10 mi (911.06 km) |
| Letterkenny to Borgloon | 614.40 mi (988.78 km) |
| Letterkenny to Bornem | 562.65 mi (905.50 km) |
