| Mason City to Twickenham | 4,089.90 mi (6,582.06 km) |
| Mason City to Tyldesley | 3,939.82 mi (6,340.52 km) |
| Mason City to Tynemouth | 3,925.46 mi (6,317.41 km) |
| Mason City to Uckfield | 4,123.55 mi (6,636.21 km) |
| Mason City to Ulverston | 3,894.85 mi (6,268.15 km) |
| Mason City to Upminster | 4,107.41 mi (6,610.24 km) |
| Mason City to Upton | 3,921.63 mi (6,311.25 km) |
| Mason City to Urmston | 3,945.43 mi (6,349.55 km) |
| Mason City to Usworth | 3,923.68 mi (6,314.55 km) |
| Mason City to Uttoxeter | 3,982.91 mi (6,409.87 km) |
| Mason City to Uxbridge | 4,081.43 mi (6,568.42 km) |
| Mason City to Verwood | 4,053.64 mi (6,523.70 km) |
| Mason City to Wakefield | 3,968.94 mi (6,387.39 km) |
| Mason City to Walkden | 3,941.98 mi (6,344.01 km) |
| Mason City to Wallasey | 3,923.30 mi (6,313.95 km) |
