| Mason City to Scottsboro (Alabama) | 701.63 mi (1,129.17 km) |
| Mason City to Scottsdale (Arizona) | 1,199.22 mi (1,929.96 km) |
| Mason City to Scranton (Pennsylvania) | 902.79 mi (1,452.91 km) |
| Mason City to Seabrook (Maryland) | 897.33 mi (1,444.11 km) |
| Mason City to Seabrook (Texas) | 943.25 mi (1,518.02 km) |
| Mason City to Seaford (New York) | 1,025.28 mi (1,650.03 km) |
| Mason City to Seagoville (Texas) | 747.60 mi (1,203.14 km) |
| Mason City to Seal Beach (California) | 1,486.48 mi (2,392.26 km) |
| Mason City to Searcy (Arkansas) | 551.89 mi (888.18 km) |
| Mason City to Seaside (California) | 1,574.20 mi (2,533.42 km) |
| Mason City to SeaTac (Washington) | 1,436.18 mi (2,311.30 km) |
| Mason City to Seattle (Washington) | 1,437.67 mi (2,313.71 km) |
| Mason City to Sebastian (Florida) | 1,277.09 mi (2,055.28 km) |
| Mason City to Sebring (Florida) | 1,266.37 mi (2,038.03 km) |
| Mason City to Secaucus (New Jersey) | 994.25 mi (1,600.09 km) |
