| Columbus to Devnya | 5,242.60 mi (8,437.15 km) |
| Columbus to Dimitrovgrad | 5,221.91 mi (8,403.86 km) |
| Columbus to Dobrich | 5,236.21 mi (8,426.87 km) |
| Columbus to Dospat | 5,184.46 mi (8,343.58 km) |
| Columbus to Dupnitsa | 5,115.91 mi (8,233.25 km) |
| Columbus to Elhovo | 5,253.57 mi (8,454.80 km) |
| Columbus to Etropole | 5,124.82 mi (8,247.60 km) |
| Columbus to Gabrovo | 5,174.48 mi (8,327.51 km) |
| Columbus to Gorna Oryahovitsa | 5,176.29 mi (8,330.44 km) |
| Columbus to Gotse Delchev | 5,171.21 mi (8,322.26 km) |
| Columbus to Harmanli | 5,238.79 mi (8,431.02 km) |
| Columbus to Haskovo | 5,225.97 mi (8,410.38 km) |
| Columbus to Ihtiman | 5,135.43 mi (8,264.68 km) |
| Columbus to Isperih | 5,192.15 mi (8,355.96 km) |
| Columbus to Kardzhali | 5,231.18 mi (8,418.77 km) |
