| Boston to Benisa | 985.24 mi (1,585.59 km) |
| Boston to Berga | 756.28 mi (1,217.12 km) |
| Boston to Berja | 1,123.30 mi (1,807.78 km) |
| Boston to Bermeo | 671.64 mi (1,080.90 km) |
| Boston to Berriozar | 704.57 mi (1,133.89 km) |
| Boston to Betanzos | 767.84 mi (1,235.73 km) |
| Boston to Betera | 924.83 mi (1,488.37 km) |
| Boston to Bilbao | 684.45 mi (1,101.52 km) |
| Boston to Binefar | 768.74 mi (1,237.17 km) |
| Boston to Binisalem | 928.16 mi (1,493.73 km) |
| Boston to Blanes | 791.63 mi (1,274.01 km) |
| Boston to Boadilla del Monte | 886.97 mi (1,427.44 km) |
| Boston to Boiro | 822.33 mi (1,323.41 km) |
| Boston to Bolanos de Calatrava | 989.31 mi (1,592.14 km) |
| Boston to Bollullos de la Mitacion | 1,119.94 mi (1,802.36 km) |
