| Columbia Heights to Devnya | 5,336.81 mi (8,588.76 km) |
| Columbia Heights to Dimitrovgrad | 5,336.69 mi (8,588.58 km) |
| Columbia Heights to Dobrich | 5,326.18 mi (8,571.66 km) |
| Columbia Heights to Dospat | 5,310.78 mi (8,546.88 km) |
| Columbia Heights to Dupnitsa | 5,243.52 mi (8,438.62 km) |
| Columbia Heights to Elhovo | 5,361.71 mi (8,628.84 km) |
| Columbia Heights to Etropole | 5,242.86 mi (8,437.56 km) |
| Columbia Heights to Gabrovo | 5,284.51 mi (8,504.60 km) |
| Columbia Heights to Gorna Oryahovitsa | 5,282.12 mi (8,500.74 km) |
| Columbia Heights to Gotse Delchev | 5,300.73 mi (8,530.70 km) |
| Columbia Heights to Harmanli | 5,352.69 mi (8,614.32 km) |
| Columbia Heights to Haskovo | 5,341.84 mi (8,596.86 km) |
| Columbia Heights to Ihtiman | 5,257.65 mi (8,461.37 km) |
| Columbia Heights to Isperih | 5,286.85 mi (8,508.36 km) |
| Columbia Heights to Kardzhali | 5,350.42 mi (8,610.67 km) |
