| Mountain Ash to Willow Grove (Pennsylvania) | 3,394.42 mi (5,462.79 km) |
| Mountain Ash to Willowbrook (California) | 5,333.96 mi (8,584.18 km) |
| Mountain Ash to Willowick (Ohio) | 3,586.63 mi (5,772.13 km) |
| Mountain Ash to Wilmette (Illinois) | 3,812.16 mi (6,135.08 km) |
| Mountain Ash to Wilmington (Delaware) | 3,429.51 mi (5,519.27 km) |
| Mountain Ash to Wilmington (North Carolina) | 3,778.36 mi (6,080.68 km) |
| Mountain Ash to Wilmington (Ohio) | 3,778.96 mi (6,081.64 km) |
| Mountain Ash to Wilmington Island (Georgia) | 4,012.90 mi (6,458.14 km) |
| Mountain Ash to Wilson (North Carolina) | 3,709.06 mi (5,969.15 km) |
| Mountain Ash to Wilsonville (Oregon) | 4,829.10 mi (7,771.68 km) |
| Mountain Ash to Wilton Manors (Florida) | 4,266.36 mi (6,866.05 km) |
| Mountain Ash to Wimauma (Florida) | 4,280.85 mi (6,889.37 km) |
| Mountain Ash to Winchester (Kentucky) | 3,860.26 mi (6,212.48 km) |
| Mountain Ash to Winchester (Nevada) | 5,107.07 mi (8,219.04 km) |
| Mountain Ash to Winchester (Virginia) | 3,562.64 mi (5,733.51 km) |
