| Boston to Bicaz | 1,226.12 mi (1,973.24 km) |
| Boston to Bistrita | 1,153.34 mi (1,856.12 km) |
| Boston to Blaj | 1,163.66 mi (1,872.73 km) |
| Boston to Bocsa | 1,107.07 mi (1,781.65 km) |
| Boston to Boldesti-Scaeni | 1,292.61 mi (2,080.25 km) |
| Boston to Bolintin Vale | 1,304.90 mi (2,100.03 km) |
| Boston to Borsa | 1,142.69 mi (1,838.98 km) |
| Boston to Botosani | 1,222.45 mi (1,967.34 km) |
| Boston to Brad | 1,120.18 mi (1,802.76 km) |
| Boston to Bragadiru | 1,316.70 mi (2,119.02 km) |
| Boston to Braila | 1,361.51 mi (2,191.14 km) |
| Boston to Brasov | 1,251.47 mi (2,014.05 km) |
| Boston to Breaza | 1,271.67 mi (2,046.56 km) |
| Boston to Bucharest | 1,319.34 mi (2,123.28 km) |
| Boston to Buftea | 1,307.64 mi (2,104.44 km) |
