| Boston to Zottegem | 218.39 mi (351.46 km) |
| Boston to Zulte | 204.54 mi (329.17 km) |
| Boston to Zwevegem | 207.39 mi (333.77 km) |
| Boston to Zwijndrecht | 221.10 mi (355.82 km) |
| Boston to Asenovgrad | 1,375.74 mi (2,214.04 km) |
| Boston to Aytos | 1,437.71 mi (2,313.76 km) |
| Boston to Balchik | 1,442.98 mi (2,322.26 km) |
| Boston to Bankya | 1,278.31 mi (2,057.24 km) |
| Boston to Bansko | 1,331.94 mi (2,143.55 km) |
| Boston to Berkovitsa | 1,253.43 mi (2,017.20 km) |
| Boston to Blagoevgrad | 1,308.79 mi (2,106.29 km) |
| Boston to Botevgrad | 1,294.03 mi (2,082.54 km) |
| Boston to Burgas | 1,454.99 mi (2,341.57 km) |
| Boston to Byala Slatina | 1,274.52 mi (2,051.14 km) |
| Boston to Chirpan | 1,384.90 mi (2,228.78 km) |
