| Hemel Hempstead to Devnya | 1,424.19 mi (2,292.02 km) |
| Hemel Hempstead to Dimitrovgrad | 1,390.68 mi (2,238.08 km) |
| Hemel Hempstead to Dobrich | 1,421.86 mi (2,288.26 km) |
| Hemel Hempstead to Dospat | 1,350.30 mi (2,173.10 km) |
| Hemel Hempstead to Dupnitsa | 1,281.71 mi (2,062.71 km) |
| Hemel Hempstead to Elhovo | 1,425.17 mi (2,293.58 km) |
| Hemel Hempstead to Etropole | 1,292.99 mi (2,080.87 km) |
| Hemel Hempstead to Gabrovo | 1,345.90 mi (2,166.02 km) |
| Hemel Hempstead to Gorna Oryahovitsa | 1,350.21 mi (2,172.95 km) |
| Hemel Hempstead to Gotse Delchev | 1,336.77 mi (2,151.33 km) |
| Hemel Hempstead to Harmanli | 1,407.79 mi (2,265.62 km) |
| Hemel Hempstead to Haskovo | 1,394.28 mi (2,243.88 km) |
| Hemel Hempstead to Ihtiman | 1,302.23 mi (2,095.73 km) |
| Hemel Hempstead to Isperih | 1,374.41 mi (2,211.90 km) |
| Hemel Hempstead to Kardzhali | 1,398.36 mi (2,250.45 km) |
