| Merthyr Tudful to Amelia | 973.22 mi (1,566.25 km) |
| Merthyr Tudful to Anagni | 1,039.90 mi (1,673.56 km) |
| Merthyr Tudful to Ancona | 962.12 mi (1,548.38 km) |
| Merthyr Tudful to Andria | 1,179.11 mi (1,897.59 km) |
| Merthyr Tudful to Angri | 1,140.72 mi (1,835.82 km) |
| Merthyr Tudful to Anguillara Sabazia | 991.54 mi (1,595.73 km) |
| Merthyr Tudful to Anzio | 1,036.72 mi (1,668.44 km) |
| Merthyr Tudful to Anzola dell'Emilia | 833.33 mi (1,341.12 km) |
| Merthyr Tudful to Aosta | 639.10 mi (1,028.53 km) |
| Merthyr Tudful to Apricena | 1,120.48 mi (1,803.24 km) |
| Merthyr Tudful to Aprilia | 1,030.42 mi (1,658.30 km) |
| Merthyr Tudful to Aradeo | 1,299.97 mi (2,092.10 km) |
| Merthyr Tudful to Aragona | 1,290.26 mi (2,076.47 km) |
| Merthyr Tudful to Arco | 761.44 mi (1,225.42 km) |
| Merthyr Tudful to Arcola | 807.45 mi (1,299.46 km) |
