| Swansea to Wisbech | 4,171.60 mi (6,713.55 km) |
| Swansea to Wishaw | 3,934.48 mi (6,331.94 km) |
| Swansea to Witham | 4,216.20 mi (6,785.31 km) |
| Swansea to Witney | 4,134.99 mi (6,654.63 km) |
| Swansea to Woking | 4,186.05 mi (6,736.80 km) |
| Swansea to Wokingham | 4,171.20 mi (6,712.90 km) |
| Swansea to Wollaston | 4,089.14 mi (6,580.83 km) |
| Swansea to Wolverhampton | 4,086.92 mi (6,577.27 km) |
| Swansea to Wolverton | 4,152.77 mi (6,683.24 km) |
| Swansea to Wombourn | 4,086.44 mi (6,576.49 km) |
| Swansea to Wombwell | 4,087.99 mi (6,578.98 km) |
| Swansea to Wooburn | 4,171.80 mi (6,713.87 km) |
| Swansea to Wood Green | 4,193.50 mi (6,748.78 km) |
| Swansea to Woodhouse | 4,093.52 mi (6,587.89 km) |
| Swansea to Woodlesford | 4,079.16 mi (6,564.77 km) |
