| Bonham to Devnya | 6,054.15 mi (9,743.21 km) |
| Bonham to Dimitrovgrad | 6,041.54 mi (9,722.92 km) |
| Bonham to Dobrich | 6,045.96 mi (9,730.03 km) |
| Bonham to Dospat | 6,008.19 mi (9,669.24 km) |
| Bonham to Dupnitsa | 5,939.88 mi (9,559.32 km) |
| Bonham to Elhovo | 6,070.75 mi (9,769.94 km) |
| Bonham to Etropole | 5,945.37 mi (9,568.15 km) |
| Bonham to Gabrovo | 5,992.15 mi (9,643.44 km) |
| Bonham to Gorna Oryahovitsa | 5,992.33 mi (9,643.73 km) |
| Bonham to Gotse Delchev | 5,996.02 mi (9,649.66 km) |
| Bonham to Harmanli | 6,058.14 mi (9,749.64 km) |
| Bonham to Haskovo | 6,046.02 mi (9,730.13 km) |
| Bonham to Ihtiman | 5,957.54 mi (9,587.74 km) |
| Bonham to Isperih | 6,003.74 mi (9,662.09 km) |
| Bonham to Kardzhali | 6,052.50 mi (9,740.55 km) |
