| Merthyr Tudful to Albolote | 1,002.80 mi (1,613.85 km) |
| Merthyr Tudful to Alboraya | 858.26 mi (1,381.23 km) |
| Merthyr Tudful to Albox | 994.01 mi (1,599.71 km) |
| Merthyr Tudful to Alcala de Guadaira | 1,002.88 mi (1,613.97 km) |
| Merthyr Tudful to Alcala de Henares | 778.07 mi (1,252.19 km) |
| Merthyr Tudful to Alcala la Real | 987.90 mi (1,589.87 km) |
| Merthyr Tudful to Alcanar | 795.29 mi (1,279.90 km) |
| Merthyr Tudful to Alcaniz | 754.54 mi (1,214.32 km) |
| Merthyr Tudful to Alcantarilla | 957.27 mi (1,540.57 km) |
| Merthyr Tudful to Alcarraz | 726.98 mi (1,169.96 km) |
| Merthyr Tudful to Alcaudete | 978.97 mi (1,575.50 km) |
| Merthyr Tudful to Alcazar de San Juan | 852.47 mi (1,371.92 km) |
| Merthyr Tudful to Alcira | 881.52 mi (1,418.67 km) |
| Merthyr Tudful to Alcobendas | 774.61 mi (1,246.61 km) |
| Merthyr Tudful to Alcora | 820.89 mi (1,321.09 km) |
