| Holyhead to Devnya | 1,618.78 mi (2,605.17 km) |
| Holyhead to Dimitrovgrad | 1,590.13 mi (2,559.07 km) |
| Holyhead to Dobrich | 1,615.19 mi (2,599.39 km) |
| Holyhead to Dospat | 1,551.86 mi (2,497.47 km) |
| Holyhead to Dupnitsa | 1,483.32 mi (2,387.18 km) |
| Holyhead to Elhovo | 1,623.32 mi (2,612.48 km) |
| Holyhead to Etropole | 1,492.73 mi (2,402.31 km) |
| Holyhead to Gabrovo | 1,544.06 mi (2,484.92 km) |
| Holyhead to Gorna Oryahovitsa | 1,547.34 mi (2,490.20 km) |
| Holyhead to Gotse Delchev | 1,538.84 mi (2,476.52 km) |
| Holyhead to Harmanli | 1,607.13 mi (2,586.43 km) |
| Holyhead to Haskovo | 1,593.98 mi (2,565.26 km) |
| Holyhead to Ihtiman | 1,502.87 mi (2,418.64 km) |
| Holyhead to Isperih | 1,568.67 mi (2,524.53 km) |
| Holyhead to Kardzhali | 1,598.75 mi (2,572.94 km) |
