| Mason City to Warminster | 4,030.82 mi (6,486.98 km) |
| Mason City to Warrington | 3,939.72 mi (6,340.37 km) |
| Mason City to Warsop | 3,997.76 mi (6,433.78 km) |
| Mason City to Warwick | 4,014.37 mi (6,460.50 km) |
| Mason City to Washington | 3,926.07 mi (6,318.40 km) |
| Mason City to Waterlooville | 4,085.19 mi (6,574.49 km) |
| Mason City to Watford | 4,080.24 mi (6,566.52 km) |
| Mason City to Wath upon Dearne | 3,980.43 mi (6,405.88 km) |
| Mason City to Wealdstone | 4,084.61 mi (6,573.54 km) |
| Mason City to Wednesfield | 3,985.26 mi (6,413.66 km) |
| Mason City to Welling | 4,105.82 mi (6,607.67 km) |
| Mason City to Wellingborough | 4,046.23 mi (6,511.77 km) |
| Mason City to Wellington | 4,000.03 mi (6,437.43 km) |
| Mason City to Wellington | 3,966.09 mi (6,382.80 km) |
| Mason City to Wells | 4,013.43 mi (6,458.99 km) |
