| Calahorra to Devnya | 1,491.77 mi (2,400.78 km) |
| Calahorra to Dimitrovgrad | 1,405.44 mi (2,261.84 km) |
| Calahorra to Dobrich | 1,501.93 mi (2,417.12 km) |
| Calahorra to Dospat | 1,337.85 mi (2,153.06 km) |
| Calahorra to Dupnitsa | 1,277.62 mi (2,056.13 km) |
| Calahorra to Elhovo | 1,452.83 mi (2,338.10 km) |
| Calahorra to Etropole | 1,316.63 mi (2,118.91 km) |
| Calahorra to Gabrovo | 1,383.28 mi (2,226.18 km) |
| Calahorra to Gorna Oryahovitsa | 1,399.26 mi (2,251.90 km) |
| Calahorra to Gotse Delchev | 1,316.93 mi (2,119.40 km) |
| Calahorra to Harmanli | 1,422.04 mi (2,288.55 km) |
| Calahorra to Haskovo | 1,405.19 mi (2,261.43 km) |
| Calahorra to Ihtiman | 1,311.11 mi (2,110.03 km) |
| Calahorra to Isperih | 1,451.07 mi (2,335.27 km) |
| Calahorra to Kardzhali | 1,398.69 mi (2,250.98 km) |
