| Iowa City to Sycow | 4,740.22 mi (7,628.65 km) |
| Iowa City to Szamotuly | 4,645.61 mi (7,476.38 km) |
| Iowa City to Szczecin | 4,543.65 mi (7,312.30 km) |
| Iowa City to Szczecinek | 4,599.74 mi (7,402.57 km) |
| Iowa City to Szczytno | 4,739.93 mi (7,628.19 km) |
| Iowa City to Szprotawa | 4,656.58 mi (7,494.04 km) |
| Iowa City to Sztum | 4,664.00 mi (7,505.98 km) |
| Iowa City to Szubin | 4,664.49 mi (7,506.76 km) |
| Iowa City to Szydlowiec | 4,844.59 mi (7,796.62 km) |
| Iowa City to Tarnobrzeg | 4,901.78 mi (7,888.65 km) |
| Iowa City to Tarnow | 4,906.48 mi (7,896.22 km) |
| Iowa City to Tarnowskie Gory | 4,816.84 mi (7,751.95 km) |
| Iowa City to Tczew | 4,649.25 mi (7,482.25 km) |
| Iowa City to Tomaszow Lubelski | 4,962.99 mi (7,987.15 km) |
| Iowa City to Tomaszow Mazowiecki | 4,804.85 mi (7,732.66 km) |
