| Iowa City to Rende | 5,236.70 mi (8,427.65 km) |
| Iowa City to Resana | 4,788.65 mi (7,706.58 km) |
| Iowa City to Rescaldina | 4,675.48 mi (7,524.46 km) |
| Iowa City to Rezzato | 4,732.06 mi (7,615.51 km) |
| Iowa City to Rho | 4,682.19 mi (7,535.25 km) |
| Iowa City to Ribera | 5,204.84 mi (8,376.39 km) |
| Iowa City to Riccione Marina | 4,886.86 mi (7,864.64 km) |
| Iowa City to Riesi | 5,248.25 mi (8,446.24 km) |
| Iowa City to Rieti | 4,965.89 mi (7,991.83 km) |
| Iowa City to Rignano Flaminio | 4,960.49 mi (7,983.14 km) |
| Iowa City to Rignano sull'Arno | 4,852.99 mi (7,810.14 km) |
| Iowa City to Rimini | 4,881.12 mi (7,855.40 km) |
| Iowa City to Rionero in Vulture | 5,142.69 mi (8,276.36 km) |
| Iowa City to Riposto | 5,272.54 mi (8,485.34 km) |
| Iowa City to Riva del Garda | 4,736.47 mi (7,622.61 km) |
