| Iowa City to Cuenca | 4,441.16 mi (7,147.36 km) |
| Iowa City to Cuevas del Almanzora | 4,562.21 mi (7,342.17 km) |
| Iowa City to Cullera | 4,559.75 mi (7,338.21 km) |
| Iowa City to Culleredo | 4,050.37 mi (6,518.44 km) |
| Iowa City to Cunit | 4,560.13 mi (7,338.82 km) |
| Iowa City to Daganzo de Arriba | 4,365.57 mi (7,025.70 km) |
| Iowa City to Daimiel | 4,414.15 mi (7,103.89 km) |
| Iowa City to Don Benito | 4,318.31 mi (6,949.66 km) |
| Iowa City to Donostia | 4,324.94 mi (6,960.31 km) |
| Iowa City to Dos Hermanas | 4,378.81 mi (7,047.01 km) |
| Iowa City to Durango | 4,302.99 mi (6,924.99 km) |
| Iowa City to Ecija | 4,407.56 mi (7,093.28 km) |
| Iowa City to Ejea de los Caballeros | 4,405.74 mi (7,090.36 km) |
| Iowa City to El Alamo | 4,353.72 mi (7,006.63 km) |
| Iowa City to El Arahal | 4,396.49 mi (7,075.47 km) |
