| Hemel Hempstead to Amelia | 875.51 mi (1,409.01 km) |
| Hemel Hempstead to Anagni | 942.84 mi (1,517.35 km) |
| Hemel Hempstead to Ancona | 857.18 mi (1,379.49 km) |
| Hemel Hempstead to Andria | 1,075.27 mi (1,730.48 km) |
| Hemel Hempstead to Angri | 1,042.85 mi (1,678.31 km) |
| Hemel Hempstead to Anguillara Sabazia | 896.11 mi (1,442.14 km) |
| Hemel Hempstead to Anzio | 942.43 mi (1,516.69 km) |
| Hemel Hempstead to Anzola dell'Emilia | 731.19 mi (1,176.73 km) |
| Hemel Hempstead to Aosta | 546.02 mi (878.73 km) |
| Hemel Hempstead to Apricena | 1,017.05 mi (1,636.78 km) |
| Hemel Hempstead to Aprilia | 935.56 mi (1,505.63 km) |
| Hemel Hempstead to Aradeo | 1,195.06 mi (1,923.27 km) |
| Hemel Hempstead to Aragona | 1,205.31 mi (1,939.76 km) |
| Hemel Hempstead to Arco | 653.86 mi (1,052.28 km) |
| Hemel Hempstead to Arcola | 711.90 mi (1,145.70 km) |
