| Carbondale to Devnya | 5,585.72 mi (8,989.35 km) |
| Carbondale to Dimitrovgrad | 5,569.41 mi (8,963.10 km) |
| Carbondale to Dobrich | 5,578.37 mi (8,977.51 km) |
| Carbondale to Dospat | 5,534.21 mi (8,906.44 km) |
| Carbondale to Dupnitsa | 5,465.76 mi (8,796.30 km) |
| Carbondale to Elhovo | 5,599.74 mi (9,011.92 km) |
| Carbondale to Etropole | 5,472.78 mi (8,807.59 km) |
| Carbondale to Gabrovo | 5,520.88 mi (8,885.00 km) |
| Carbondale to Gorna Oryahovitsa | 5,521.81 mi (8,886.49 km) |
| Carbondale to Gotse Delchev | 5,521.55 mi (8,886.08 km) |
| Carbondale to Harmanli | 5,586.14 mi (8,990.03 km) |
| Carbondale to Haskovo | 5,573.70 mi (8,970.00 km) |
| Carbondale to Ihtiman | 5,484.26 mi (8,826.06 km) |
| Carbondale to Isperih | 5,535.27 mi (8,908.16 km) |
| Carbondale to Kardzhali | 5,579.61 mi (8,979.51 km) |
