| Cuellar to Devnya | 1,623.92 mi (2,613.44 km) |
| Cuellar to Dimitrovgrad | 1,535.32 mi (2,470.86 km) |
| Cuellar to Dobrich | 1,634.58 mi (2,630.61 km) |
| Cuellar to Dospat | 1,466.56 mi (2,360.20 km) |
| Cuellar to Dupnitsa | 1,407.38 mi (2,264.96 km) |
| Cuellar to Elhovo | 1,583.14 mi (2,547.81 km) |
| Cuellar to Etropole | 1,447.66 mi (2,329.78 km) |
| Cuellar to Gabrovo | 1,514.57 mi (2,437.47 km) |
| Cuellar to Gorna Oryahovitsa | 1,531.04 mi (2,463.97 km) |
| Cuellar to Gotse Delchev | 1,445.34 mi (2,326.04 km) |
| Cuellar to Harmanli | 1,551.77 mi (2,497.33 km) |
| Cuellar to Haskovo | 1,534.84 mi (2,470.08 km) |
| Cuellar to Ihtiman | 1,441.36 mi (2,319.64 km) |
| Cuellar to Isperih | 1,583.82 mi (2,548.91 km) |
| Cuellar to Kardzhali | 1,527.73 mi (2,458.65 km) |
