| Mercer Island to Twickenham | 4,781.63 mi (7,695.28 km) |
| Mercer Island to Tyldesley | 4,614.12 mi (7,425.71 km) |
| Mercer Island to Tynemouth | 4,560.88 mi (7,340.03 km) |
| Mercer Island to Uckfield | 4,819.39 mi (7,756.05 km) |
| Mercer Island to Ulverston | 4,561.97 mi (7,341.78 km) |
| Mercer Island to Upminster | 4,791.23 mi (7,710.74 km) |
| Mercer Island to Upton | 4,604.46 mi (7,410.17 km) |
| Mercer Island to Urmston | 4,620.14 mi (7,435.40 km) |
| Mercer Island to Usworth | 4,561.80 mi (7,341.50 km) |
| Mercer Island to Uttoxeter | 4,663.09 mi (7,504.52 km) |
| Mercer Island to Uxbridge | 4,772.92 mi (7,681.28 km) |
| Mercer Island to Verwood | 4,771.16 mi (7,678.44 km) |
| Mercer Island to Wakefield | 4,630.76 mi (7,452.49 km) |
| Mercer Island to Walkden | 4,615.50 mi (7,427.93 km) |
| Mercer Island to Wallasey | 4,604.83 mi (7,410.76 km) |
