| Merthyr Tudful to Ascoli Piceno | 1,000.51 mi (1,610.16 km) |
| Merthyr Tudful to Asola | 774.18 mi (1,245.92 km) |
| Merthyr Tudful to Asolo | 806.18 mi (1,297.41 km) |
| Merthyr Tudful to Assemini | 1,045.82 mi (1,683.08 km) |
| Merthyr Tudful to Assisi | 954.57 mi (1,536.23 km) |
| Merthyr Tudful to Asti | 710.41 mi (1,143.30 km) |
| Merthyr Tudful to Atessa | 1,069.92 mi (1,721.86 km) |
| Merthyr Tudful to Atri | 1,027.91 mi (1,654.27 km) |
| Merthyr Tudful to Atripalda | 1,140.54 mi (1,835.52 km) |
| Merthyr Tudful to Augusta | 1,349.60 mi (2,171.97 km) |
| Merthyr Tudful to Aulla | 804.88 mi (1,295.33 km) |
| Merthyr Tudful to Aurisina | 881.05 mi (1,417.92 km) |
| Merthyr Tudful to Avellino | 1,139.23 mi (1,833.42 km) |
| Merthyr Tudful to Aversa | 1,115.90 mi (1,795.87 km) |
| Merthyr Tudful to Avezzano | 1,034.80 mi (1,665.35 km) |
