| Boston to Bilecik | 1,660.09 mi (2,671.66 km) |
| Boston to Bingol | 2,139.37 mi (3,442.98 km) |
| Boston to Birecik | 2,123.13 mi (3,416.84 km) |
| Boston to Bitlis | 2,227.04 mi (3,584.08 km) |
| Boston to Bodrum | 1,716.44 mi (2,762.35 km) |
| Boston to Bogazliyan | 1,912.48 mi (3,077.83 km) |
| Boston to Bolu | 1,697.24 mi (2,731.45 km) |
| Boston to Bolvadin | 1,769.20 mi (2,847.25 km) |
| Boston to Bor | 1,946.68 mi (3,132.89 km) |
| Boston to Borcka | 2,080.68 mi (3,348.53 km) |
| Boston to Boyabat | 1,792.54 mi (2,884.82 km) |
| Boston to Bozdogan | 1,716.52 mi (2,762.47 km) |
| Boston to Bozkir | 1,889.82 mi (3,041.37 km) |
| Boston to Bozkurt | 1,758.31 mi (2,829.72 km) |
| Boston to Bozuyuk | 1,673.31 mi (2,692.94 km) |
