| Boston to Borsbeek | 227.09 mi (365.47 km) |
| Boston to Boussu | 239.81 mi (385.94 km) |
| Boston to Braine-l'Alleud | 245.48 mi (395.07 km) |
| Boston to Braine-le-Chateau | 241.95 mi (389.39 km) |
| Boston to Braine-le-Comte | 241.67 mi (388.92 km) |
| Boston to Brasschaat | 223.74 mi (360.07 km) |
| Boston to Brecht | 226.90 mi (365.16 km) |
| Boston to Bredene | 175.01 mi (281.65 km) |
| Boston to Bree | 269.86 mi (434.29 km) |
| Boston to Bruges | 183.97 mi (296.07 km) |
| Boston to Brussels | 237.33 mi (381.95 km) |
| Boston to Buggenhout | 225.47 mi (362.87 km) |
| Boston to Chapelle-lez-Herlaimont | 252.82 mi (406.88 km) |
| Boston to Charleroi | 260.76 mi (419.65 km) |
| Boston to Chatelet | 263.38 mi (423.86 km) |
