| Boiling Springs to Devnya | 5,447.11 mi (8,766.28 km) |
| Boiling Springs to Dimitrovgrad | 5,417.22 mi (8,718.17 km) |
| Boiling Springs to Dobrich | 5,442.67 mi (8,759.14 km) |
| Boiling Springs to Dospat | 5,374.71 mi (8,649.76 km) |
| Boiling Springs to Dupnitsa | 5,306.16 mi (8,539.44 km) |
| Boiling Springs to Elhovo | 5,451.65 mi (8,773.59 km) |
| Boiling Springs to Etropole | 5,319.46 mi (8,560.85 km) |
| Boiling Springs to Gabrovo | 5,372.38 mi (8,646.01 km) |
| Boiling Springs to Gorna Oryahovitsa | 5,376.11 mi (8,652.01 km) |
| Boiling Springs to Gotse Delchev | 5,360.08 mi (8,626.21 km) |
| Boiling Springs to Harmanli | 5,434.36 mi (8,745.76 km) |
| Boiling Springs to Haskovo | 5,420.73 mi (8,723.82 km) |
| Boiling Springs to Ihtiman | 5,328.04 mi (8,574.65 km) |
| Boiling Springs to Isperih | 5,396.87 mi (8,685.42 km) |
| Boiling Springs to Kardzhali | 5,424.34 mi (8,729.63 km) |
