| Potomac to Twickenham | 3,658.97 mi (5,888.55 km) |
| Potomac to Tyldesley | 3,531.30 mi (5,683.08 km) |
| Potomac to Tynemouth | 3,544.36 mi (5,704.10 km) |
| Potomac to Uckfield | 3,687.58 mi (5,934.58 km) |
| Potomac to Ulverston | 3,494.57 mi (5,623.96 km) |
| Potomac to Upminster | 3,680.57 mi (5,923.30 km) |
| Potomac to Upton | 3,508.66 mi (5,646.64 km) |
| Potomac to Urmston | 3,536.21 mi (5,690.99 km) |
| Potomac to Usworth | 3,540.89 mi (5,698.52 km) |
| Potomac to Uttoxeter | 3,567.26 mi (5,740.95 km) |
| Potomac to Uxbridge | 3,651.23 mi (5,876.08 km) |
| Potomac to Verwood | 3,607.86 mi (5,806.29 km) |
| Potomac to Wakefield | 3,566.73 mi (5,740.09 km) |
| Potomac to Walkden | 3,533.84 mi (5,687.17 km) |
| Potomac to Wallasey | 3,511.10 mi (5,650.57 km) |
