| Donostia to Bierun | 1,098.76 mi (1,768.28 km) |
| Donostia to Bierun Stary | 1,097.56 mi (1,766.35 km) |
| Donostia to Bilgoraj | 1,260.82 mi (2,029.10 km) |
| Donostia to Biskupiec | 1,267.77 mi (2,040.28 km) |
| Donostia to Blachownia | 1,107.39 mi (1,782.18 km) |
| Donostia to Blonie | 1,208.27 mi (1,944.53 km) |
| Donostia to Bochnia | 1,152.71 mi (1,855.11 km) |
| Donostia to Bogatynia | 949.95 mi (1,528.79 km) |
| Donostia to Boguszow-Gorce | 994.74 mi (1,600.89 km) |
| Donostia to Boleslawiec | 984.81 mi (1,584.90 km) |
| Donostia to Braniewo | 1,243.38 mi (2,001.03 km) |
| Donostia to Brodnica | 1,191.42 mi (1,917.40 km) |
| Donostia to Brwinow | 1,210.75 mi (1,948.52 km) |
| Donostia to Brzeg | 1,048.97 mi (1,688.15 km) |
| Donostia to Brzeg Dolny | 1,029.79 mi (1,657.29 km) |
