| Boise to Devnya | 6,034.77 mi (9,712.02 km) |
| Boise to Dimitrovgrad | 6,063.44 mi (9,758.16 km) |
| Boise to Dobrich | 6,018.62 mi (9,686.03 km) |
| Boise to Dospat | 6,054.49 mi (9,743.75 km) |
| Boise to Dupnitsa | 5,991.75 mi (9,642.79 km) |
| Boise to Elhovo | 6,078.16 mi (9,781.85 km) |
| Boise to Etropole | 5,978.07 mi (9,620.78 km) |
| Boise to Gabrovo | 6,006.92 mi (9,667.20 km) |
| Boise to Gorna Oryahovitsa | 5,998.78 mi (9,654.10 km) |
| Boise to Gotse Delchev | 6,049.19 mi (9,735.23 km) |
| Boise to Harmanli | 6,077.53 mi (9,780.84 km) |
| Boise to Haskovo | 6,069.88 mi (9,768.53 km) |
| Boise to Ihtiman | 5,997.95 mi (9,652.77 km) |
| Boise to Isperih | 5,987.73 mi (9,636.31 km) |
| Boise to Kardzhali | 6,082.74 mi (9,789.23 km) |
