| Iowa City to Sabadell | 4,566.14 mi (7,348.50 km) |
| Iowa City to Sabinanigo | 4,423.66 mi (7,119.19 km) |
| Iowa City to Sagunto | 4,538.47 mi (7,303.97 km) |
| Iowa City to Salamanca | 4,252.58 mi (6,843.86 km) |
| Iowa City to Salobrena | 4,506.27 mi (7,252.14 km) |
| Iowa City to Salou | 4,543.43 mi (7,311.94 km) |
| Iowa City to Salt | 4,577.59 mi (7,366.92 km) |
| Iowa City to Salvatierra de Mino | 4,087.08 mi (6,577.52 km) |
| Iowa City to Sama | 4,167.45 mi (6,706.87 km) |
| Iowa City to San Adrian de Besos | 4,575.53 mi (7,363.61 km) |
| Iowa City to San Agustin de Guadalix | 4,353.55 mi (7,006.35 km) |
| Iowa City to San Andres de la Barca | 4,564.65 mi (7,346.09 km) |
| Iowa City to San Andres de Llevaneras | 4,580.95 mi (7,372.33 km) |
| Iowa City to San Andres del Rabanedo | 4,195.46 mi (6,751.94 km) |
| Iowa City to San Bartolome | 4,274.91 mi (6,879.80 km) |
