| Iowa City to Santa Venerina | 5,272.19 mi (8,484.78 km) |
| Iowa City to Santeramo in Colle | 5,190.53 mi (8,353.35 km) |
| Iowa City to Santo Stefano di Magra | 4,774.48 mi (7,683.79 km) |
| Iowa City to Santo Stino di Livenza | 4,811.70 mi (7,743.68 km) |
| Iowa City to Sarezzo | 4,721.83 mi (7,599.05 km) |
| Iowa City to Sarno | 5,106.49 mi (8,218.11 km) |
| Iowa City to Saronno | 4,678.45 mi (7,529.24 km) |
| Iowa City to Sarzana | 4,778.33 mi (7,689.97 km) |
| Iowa City to Sassari | 4,868.32 mi (7,834.81 km) |
| Iowa City to Sasso Marconi | 4,815.75 mi (7,750.21 km) |
| Iowa City to Sassuolo | 4,791.35 mi (7,710.93 km) |
| Iowa City to Sava | 5,240.05 mi (8,433.05 km) |
| Iowa City to Saviano | 5,098.00 mi (8,204.43 km) |
| Iowa City to Savigliano | 4,664.78 mi (7,507.24 km) |
| Iowa City to Savignano sul Panaro | 4,803.82 mi (7,731.00 km) |
