| Swansea to Wibsey | 4,066.94 mi (6,545.11 km) |
| Swansea to Wick | 3,897.49 mi (6,272.41 km) |
| Swansea to Wickford | 4,217.51 mi (6,787.42 km) |
| Swansea to Widnes | 4,042.38 mi (6,505.57 km) |
| Swansea to Wigan | 4,040.97 mi (6,503.31 km) |
| Swansea to Wigston Magna | 4,126.63 mi (6,641.18 km) |
| Swansea to Willenhall | 4,089.80 mi (6,581.91 km) |
| Swansea to Wilmslow | 4,061.89 mi (6,536.98 km) |
| Swansea to Wilnecote | 4,103.98 mi (6,604.71 km) |
| Swansea to Wimbledon | 4,195.29 mi (6,751.67 km) |
| Swansea to Winchester | 4,163.42 mi (6,700.38 km) |
| Swansea to Windlesham | 4,179.69 mi (6,726.56 km) |
| Swansea to Windsor | 4,178.04 mi (6,723.90 km) |
| Swansea to Winkfield | 4,175.59 mi (6,719.97 km) |
| Swansea to Winsford | 4,054.94 mi (6,525.80 km) |
