| Mercer Island to Wallingford | 4,752.59 mi (7,648.55 km) |
| Mercer Island to Wallington | 4,791.42 mi (7,711.04 km) |
| Mercer Island to Wallsend | 4,559.48 mi (7,337.77 km) |
| Mercer Island to Walsall | 4,676.99 mi (7,526.89 km) |
| Mercer Island to Walsall Wood | 4,675.75 mi (7,524.89 km) |
| Mercer Island to Waltham Abbey | 4,777.61 mi (7,688.83 km) |
| Mercer Island to Waltham Cross | 4,776.66 mi (7,687.29 km) |
| Mercer Island to Walthamstow | 4,782.56 mi (7,696.78 km) |
| Mercer Island to Walton upon Thames | 4,783.01 mi (7,697.50 km) |
| Mercer Island to Walton-on-the-Naze | 4,801.46 mi (7,727.21 km) |
| Mercer Island to Wandsworth | 4,785.12 mi (7,700.91 km) |
| Mercer Island to Wanstead | 4,784.20 mi (7,699.42 km) |
| Mercer Island to Wantage | 4,745.08 mi (7,636.47 km) |
| Mercer Island to Ware | 4,769.87 mi (7,676.37 km) |
| Mercer Island to Warfield | 4,771.42 mi (7,678.86 km) |
