| Highlands Ranch to Devnya | 5,996.61 mi (9,650.61 km) |
| Highlands Ranch to Dimitrovgrad | 6,004.61 mi (9,663.49 km) |
| Highlands Ranch to Dobrich | 5,984.30 mi (9,630.81 km) |
| Highlands Ranch to Dospat | 5,983.13 mi (9,628.91 km) |
| Highlands Ranch to Dupnitsa | 5,916.73 mi (9,522.06 km) |
| Highlands Ranch to Elhovo | 6,026.91 mi (9,699.38 km) |
| Highlands Ranch to Etropole | 5,912.62 mi (9,515.44 km) |
| Highlands Ranch to Gabrovo | 5,950.98 mi (9,577.17 km) |
| Highlands Ranch to Gorna Oryahovitsa | 5,946.97 mi (9,570.72 km) |
| Highlands Ranch to Gotse Delchev | 5,974.27 mi (9,614.66 km) |
| Highlands Ranch to Harmanli | 6,020.17 mi (9,688.52 km) |
| Highlands Ranch to Haskovo | 6,010.14 mi (9,672.38 km) |
| Highlands Ranch to Ihtiman | 5,928.84 mi (9,541.55 km) |
| Highlands Ranch to Isperih | 5,947.22 mi (9,571.13 km) |
| Highlands Ranch to Kardzhali | 6,019.92 mi (9,688.13 km) |
