| Mason City to San Lorenzo de Descardazar | 4,707.21 mi (7,575.52 km) |
| Mason City to San Lorenzo de El Escorial | 4,352.30 mi (7,004.35 km) |
| Mason City to San Martin de la Vega | 4,392.13 mi (7,068.46 km) |
| Mason City to San Martin de Valdeiglesias | 4,350.29 mi (7,001.12 km) |
| Mason City to San Pedro de Ribas | 4,574.32 mi (7,361.66 km) |
| Mason City to San Roque | 4,474.33 mi (7,200.74 km) |
| Mason City to San Sebastian de la Gomera | 4,250.99 mi (6,841.30 km) |
| Mason City to San Sebastian de los Reyes | 4,376.34 mi (7,043.04 km) |
| Mason City to San Vicente de Baracaldo | 4,294.52 mi (6,911.36 km) |
| Mason City to San Vicente de Castellet | 4,561.04 mi (7,340.29 km) |
| Mason City to San Vicente del Raspeig | 4,597.57 mi (7,399.07 km) |
| Mason City to San Vicente dels Horts | 4,578.45 mi (7,368.30 km) |
| Mason City to Sangenjo | 4,082.20 mi (6,569.66 km) |
| Mason City to Sanlucar de Barrameda | 4,408.31 mi (7,094.50 km) |
| Mason City to Sanlucar la Mayor | 4,390.23 mi (7,065.39 km) |
