| Merthyr Tudful to Warrington | 118.51 mi (190.72 km) |
| Merthyr Tudful to Warsop | 137.56 mi (221.39 km) |
| Merthyr Tudful to Warwick | 84.60 mi (136.16 km) |
| Merthyr Tudful to Washington | 231.19 mi (372.07 km) |
| Merthyr Tudful to Waterlooville | 117.63 mi (189.31 km) |
| Merthyr Tudful to Watford | 127.85 mi (205.75 km) |
| Merthyr Tudful to Wath upon Dearne | 148.58 mi (239.12 km) |
| Merthyr Tudful to Wealdstone | 130.78 mi (210.46 km) |
| Merthyr Tudful to Wednesfield | 80.73 mi (129.92 km) |
| Merthyr Tudful to Welling | 150.94 mi (242.92 km) |
| Merthyr Tudful to Wellingborough | 120.20 mi (193.44 km) |
| Merthyr Tudful to Wellington | 53.44 mi (86.01 km) |
| Merthyr Tudful to Wellington | 75.53 mi (121.56 km) |
| Merthyr Tudful to Wells | 48.52 mi (78.09 km) |
| Merthyr Tudful to Welwyn Garden City | 136.22 mi (219.22 km) |
