| Caister-on-Sea to Devnya | 1,351.48 mi (2,175.00 km) |
| Caister-on-Sea to Dimitrovgrad | 1,326.19 mi (2,134.30 km) |
| Caister-on-Sea to Dobrich | 1,347.44 mi (2,168.49 km) |
| Caister-on-Sea to Dospat | 1,290.72 mi (2,077.21 km) |
| Caister-on-Sea to Dupnitsa | 1,222.40 mi (1,967.26 km) |
| Caister-on-Sea to Elhovo | 1,358.15 mi (2,185.72 km) |
| Caister-on-Sea to Etropole | 1,229.22 mi (1,978.24 km) |
| Caister-on-Sea to Gabrovo | 1,278.97 mi (2,058.30 km) |
| Caister-on-Sea to Gorna Oryahovitsa | 1,281.48 mi (2,062.34 km) |
| Caister-on-Sea to Gotse Delchev | 1,278.61 mi (2,057.72 km) |
| Caister-on-Sea to Harmanli | 1,343.06 mi (2,161.44 km) |
| Caister-on-Sea to Haskovo | 1,330.30 mi (2,140.90 km) |
| Caister-on-Sea to Ihtiman | 1,240.47 mi (1,996.34 km) |
| Caister-on-Sea to Isperih | 1,301.28 mi (2,094.20 km) |
| Caister-on-Sea to Kardzhali | 1,335.87 mi (2,149.87 km) |
