| Pencoed to Willow Grove (Pennsylvania) | 3,392.32 mi (5,459.41 km) |
| Pencoed to Willowbrook (California) | 5,336.76 mi (8,588.69 km) |
| Pencoed to Willowick (Ohio) | 3,585.68 mi (5,770.60 km) |
| Pencoed to Wilmette (Illinois) | 3,812.10 mi (6,134.98 km) |
| Pencoed to Wilmington (Delaware) | 3,427.39 mi (5,515.85 km) |
| Pencoed to Wilmington (North Carolina) | 3,775.45 mi (6,076.00 km) |
| Pencoed to Wilmington (Ohio) | 3,777.87 mi (6,079.89 km) |
| Pencoed to Wilmington Island (Georgia) | 4,010.04 mi (6,453.54 km) |
| Pencoed to Wilson (North Carolina) | 3,706.45 mi (5,964.95 km) |
| Pencoed to Wilsonville (Oregon) | 4,833.88 mi (7,779.38 km) |
| Pencoed to Wilton Manors (Florida) | 4,262.41 mi (6,859.69 km) |
| Pencoed to Wimauma (Florida) | 4,277.47 mi (6,883.92 km) |
| Pencoed to Winchester (Kentucky) | 3,858.95 mi (6,210.37 km) |
| Pencoed to Winchester (Nevada) | 5,109.71 mi (8,223.29 km) |
| Pencoed to Winchester (Virginia) | 3,560.75 mi (5,730.47 km) |
