| Mason City to Cuenca | 4,458.85 mi (7,175.82 km) |
| Mason City to Cuevas del Almanzora | 4,585.28 mi (7,379.30 km) |
| Mason City to Cullera | 4,577.14 mi (7,366.19 km) |
| Mason City to Culleredo | 4,067.61 mi (6,546.19 km) |
| Mason City to Cunit | 4,571.19 mi (7,356.62 km) |
| Mason City to Daganzo de Arriba | 4,383.71 mi (7,054.89 km) |
| Mason City to Daimiel | 4,435.56 mi (7,138.35 km) |
| Mason City to Don Benito | 4,342.54 mi (6,988.64 km) |
| Mason City to Donostia | 4,335.48 mi (6,977.28 km) |
| Mason City to Dos Hermanas | 4,406.64 mi (7,091.80 km) |
| Mason City to Durango | 4,314.55 mi (6,943.59 km) |
| Mason City to Ecija | 4,433.90 mi (7,135.68 km) |
| Mason City to Ejea de los Caballeros | 4,417.94 mi (7,109.99 km) |
| Mason City to El Alamo | 4,373.12 mi (7,037.85 km) |
| Mason City to El Arahal | 4,423.93 mi (7,119.63 km) |
