| Iowa City to Prokuplje | 5,252.55 mi (8,453.16 km) |
| Iowa City to Raca | 5,182.61 mi (8,340.61 km) |
| Iowa City to Raska | 5,215.07 mi (8,392.84 km) |
| Iowa City to Razanj | 5,230.17 mi (8,417.15 km) |
| Iowa City to Rekovac | 5,205.67 mi (8,377.72 km) |
| Iowa City to Ruma | 5,105.13 mi (8,215.91 km) |
| Iowa City to Sabac | 5,111.81 mi (8,226.67 km) |
| Iowa City to Secanj | 5,120.59 mi (8,240.79 km) |
| Iowa City to Senta | 5,069.79 mi (8,159.04 km) |
| Iowa City to Sid | 5,078.31 mi (8,172.76 km) |
| Iowa City to Sjenica | 5,194.01 mi (8,358.94 km) |
| Iowa City to Smederevo | 5,159.93 mi (8,304.10 km) |
| Iowa City to Smederevska Palanka | 5,175.35 mi (8,328.93 km) |
| Iowa City to Sokobanja | 5,242.20 mi (8,436.50 km) |
| Iowa City to Sombor | 5,042.71 mi (8,115.45 km) |
