| Boston to Devnya | 1,428.06 mi (2,298.25 km) |
| Boston to Dimitrovgrad | 1,402.34 mi (2,256.85 km) |
| Boston to Dobrich | 1,424.02 mi (2,291.75 km) |
| Boston to Dospat | 1,366.32 mi (2,198.88 km) |
| Boston to Dupnitsa | 1,297.95 mi (2,088.84 km) |
| Boston to Elhovo | 1,434.50 mi (2,308.60 km) |
| Boston to Etropole | 1,305.28 mi (2,100.64 km) |
| Boston to Gabrovo | 1,355.30 mi (2,181.15 km) |
| Boston to Gorna Oryahovitsa | 1,357.92 mi (2,185.37 km) |
| Boston to Gotse Delchev | 1,354.01 mi (2,179.08 km) |
| Boston to Harmanli | 1,419.23 mi (2,284.03 km) |
| Boston to Haskovo | 1,406.40 mi (2,263.38 km) |
| Boston to Ihtiman | 1,316.32 mi (2,118.41 km) |
| Boston to Isperih | 1,377.86 mi (2,217.45 km) |
| Boston to Kardzhali | 1,411.82 mi (2,272.11 km) |
