| Merthyr Tudful to Arcore | 714.95 mi (1,150.61 km) |
| Merthyr Tudful to Ardea | 1,025.26 mi (1,650.00 km) |
| Merthyr Tudful to Arenzano | 751.26 mi (1,209.04 km) |
| Merthyr Tudful to Arese | 709.64 mi (1,142.05 km) |
| Merthyr Tudful to Arezzo | 909.26 mi (1,463.31 km) |
| Merthyr Tudful to Argelato | 837.65 mi (1,348.07 km) |
| Merthyr Tudful to Argenta | 853.85 mi (1,374.14 km) |
| Merthyr Tudful to Ariano Irpino | 1,138.09 mi (1,831.58 km) |
| Merthyr Tudful to Ariccia | 1,024.12 mi (1,648.16 km) |
| Merthyr Tudful to Arluno | 707.13 mi (1,138.01 km) |
| Merthyr Tudful to Arona | 681.85 mi (1,097.33 km) |
| Merthyr Tudful to Artena | 1,031.93 mi (1,660.73 km) |
| Merthyr Tudful to Arzachena | 952.15 mi (1,532.34 km) |
| Merthyr Tudful to Arzano | 1,120.80 mi (1,803.76 km) |
| Merthyr Tudful to Arzignano | 795.50 mi (1,280.23 km) |
