| Heiloo to Devnya | 1,233.04 mi (1,984.38 km) |
| Heiloo to Dimitrovgrad | 1,212.41 mi (1,951.18 km) |
| Heiloo to Dobrich | 1,228.15 mi (1,976.51 km) |
| Heiloo to Dospat | 1,180.14 mi (1,899.25 km) |
| Heiloo to Dupnitsa | 1,112.22 mi (1,789.95 km) |
| Heiloo to Elhovo | 1,242.79 mi (2,000.08 km) |
| Heiloo to Etropole | 1,116.13 mi (1,796.23 km) |
| Heiloo to Gabrovo | 1,163.83 mi (1,873.00 km) |
| Heiloo to Gorna Oryahovitsa | 1,165.30 mi (1,875.37 km) |
| Heiloo to Gotse Delchev | 1,169.01 mi (1,881.35 km) |
| Heiloo to Harmanli | 1,229.09 mi (1,978.02 km) |
| Heiloo to Haskovo | 1,216.81 mi (1,958.27 km) |
| Heiloo to Ihtiman | 1,128.62 mi (1,816.34 km) |
| Heiloo to Isperih | 1,182.70 mi (1,903.36 km) |
| Heiloo to Kardzhali | 1,223.30 mi (1,968.71 km) |
