| Siedlce to Borsbeek | 763.00 mi (1,227.94 km) |
| Siedlce to Boussu | 804.81 mi (1,295.22 km) |
| Siedlce to Braine-l'Alleud | 775.96 mi (1,248.79 km) |
| Siedlce to Braine-le-Chateau | 780.36 mi (1,255.87 km) |
| Siedlce to Braine-le-Comte | 787.48 mi (1,267.32 km) |
| Siedlce to Brasschaat | 761.44 mi (1,225.42 km) |
| Siedlce to Brecht | 754.57 mi (1,214.37 km) |
| Siedlce to Bredene | 826.35 mi (1,329.89 km) |
| Siedlce to Bree | 717.37 mi (1,154.49 km) |
| Siedlce to Bruges | 816.19 mi (1,313.53 km) |
| Siedlce to Brussels | 773.97 mi (1,245.59 km) |
| Siedlce to Buggenhout | 777.99 mi (1,252.05 km) |
| Siedlce to Chapelle-lez-Herlaimont | 783.54 mi (1,260.99 km) |
| Siedlce to Charleroi | 778.44 mi (1,252.78 km) |
| Siedlce to Chatelet | 774.91 mi (1,247.09 km) |
