| Heerlen to Alfena | 960.09 mi (1,545.12 km) |
| Heerlen to Alijo | 922.79 mi (1,485.09 km) |
| Heerlen to Aljustrel | 1,131.93 mi (1,821.66 km) |
| Heerlen to Almada | 1,119.13 mi (1,801.07 km) |
| Heerlen to Almargem | 1,113.46 mi (1,791.94 km) |
| Heerlen to Almeirim | 1,072.96 mi (1,726.76 km) |
| Heerlen to Amadora | 1,118.58 mi (1,800.17 km) |
| Heerlen to Amarante | 943.03 mi (1,517.66 km) |
| Heerlen to Amares | 933.91 mi (1,502.99 km) |
| Heerlen to Amora | 1,120.88 mi (1,803.88 km) |
| Heerlen to Anadia | 999.57 mi (1,608.65 km) |
| Heerlen to Angra do Heroismo | 1,813.47 mi (2,918.50 km) |
| Heerlen to Ansiao | 1,027.56 mi (1,653.70 km) |
| Heerlen to Anta | 975.54 mi (1,569.98 km) |
| Heerlen to Arcos de Valdevez | 925.09 mi (1,488.78 km) |
