| Mason City to Irun | 4,342.66 mi (6,988.83 km) |
| Mason City to Isla-Cristina | 4,347.31 mi (6,996.32 km) |
| Mason City to Jaca | 4,425.26 mi (7,121.76 km) |
| Mason City to Jaen | 4,482.40 mi (7,213.72 km) |
| Mason City to Jerez de la Frontera | 4,421.28 mi (7,115.37 km) |
| Mason City to Jerez de los Caballeros | 4,327.41 mi (6,964.30 km) |
| Mason City to Jodar | 4,498.18 mi (7,239.12 km) |
| Mason City to Jumilla | 4,559.64 mi (7,338.04 km) |
| Mason City to La Algaba | 4,396.47 mi (7,075.44 km) |
| Mason City to La Baneza | 4,210.72 mi (6,776.50 km) |
| Mason City to La Carlota | 4,435.15 mi (7,137.68 km) |
| Mason City to La Carolina | 4,468.75 mi (7,191.76 km) |
| Mason City to La Corredoria | 4,172.90 mi (6,715.64 km) |
| Mason City to La Eliana | 4,548.60 mi (7,320.26 km) |
| Mason City to La Escala | 4,594.03 mi (7,393.38 km) |
