| Merthyr Tudful to Amersham | 118.89 mi (191.33 km) |
| Merthyr Tudful to Amesbury | 79.27 mi (127.57 km) |
| Merthyr Tudful to Ammanford | 26.59 mi (42.79 km) |
| Merthyr Tudful to Ampthill | 124.68 mi (200.65 km) |
| Merthyr Tudful to Andover | 89.65 mi (144.28 km) |
| Merthyr Tudful to Annan | 223.91 mi (360.35 km) |
| Merthyr Tudful to Antrim | 236.40 mi (380.45 km) |
| Merthyr Tudful to Appleton | 116.48 mi (187.46 km) |
| Merthyr Tudful to Appley Bridge | 129.81 mi (208.90 km) |
| Merthyr Tudful to Arbroath | 334.42 mi (538.20 km) |
| Merthyr Tudful to Ardrossan | 275.75 mi (443.78 km) |
| Merthyr Tudful to Armadale | 287.38 mi (462.49 km) |
| Merthyr Tudful to Armthorpe | 157.60 mi (253.63 km) |
| Merthyr Tudful to Arnold | 128.90 mi (207.45 km) |
| Merthyr Tudful to Ascot | 118.52 mi (190.74 km) |
