| Longmont to Devnya | 5,963.79 mi (9,597.79 km) |
| Longmont to Dimitrovgrad | 5,972.75 mi (9,612.22 km) |
| Longmont to Dobrich | 5,951.30 mi (9,577.70 km) |
| Longmont to Dospat | 5,951.85 mi (9,578.58 km) |
| Longmont to Dupnitsa | 5,885.59 mi (9,471.95 km) |
| Longmont to Elhovo | 5,994.71 mi (9,647.55 km) |
| Longmont to Etropole | 5,881.02 mi (9,464.58 km) |
| Longmont to Gabrovo | 5,918.95 mi (9,525.63 km) |
| Longmont to Gorna Oryahovitsa | 5,914.75 mi (9,518.86 km) |
| Longmont to Gotse Delchev | 5,943.16 mi (9,564.59 km) |
| Longmont to Harmanli | 5,988.25 mi (9,637.15 km) |
| Longmont to Haskovo | 5,978.32 mi (9,621.18 km) |
| Longmont to Ihtiman | 5,897.42 mi (9,490.99 km) |
| Longmont to Isperih | 5,914.48 mi (9,518.44 km) |
| Longmont to Kardzhali | 5,988.26 mi (9,637.17 km) |
