| Iowa City to Nowy Dwor Mazowiecki | 4,784.36 mi (7,699.69 km) |
| Iowa City to Nowy Sacz | 4,915.33 mi (7,910.47 km) |
| Iowa City to Nowy Targ | 4,900.36 mi (7,886.36 km) |
| Iowa City to Nowy Tomysl | 4,643.46 mi (7,472.93 km) |
| Iowa City to Nysa | 4,765.18 mi (7,668.81 km) |
| Iowa City to Oborniki | 4,650.93 mi (7,484.95 km) |
| Iowa City to Oborniki Slaskie | 4,713.73 mi (7,586.02 km) |
| Iowa City to Olawa | 4,743.25 mi (7,633.52 km) |
| Iowa City to Olecko | 4,763.69 mi (7,666.42 km) |
| Iowa City to Olesnica | 4,734.01 mi (7,618.65 km) |
| Iowa City to Olesno | 4,782.64 mi (7,696.91 km) |
| Iowa City to Olkusz | 4,847.54 mi (7,801.36 km) |
| Iowa City to Olsztyn | 4,714.84 mi (7,587.80 km) |
| Iowa City to Opalenica | 4,652.98 mi (7,488.25 km) |
| Iowa City to Opoczno | 4,819.94 mi (7,756.95 km) |
