| Iowa City to Ondokuzmayis | 5,826.48 mi (9,376.81 km) |
| Iowa City to Ordu | 5,910.09 mi (9,511.38 km) |
| Iowa City to Ortahisar | 5,947.05 mi (9,570.85 km) |
| Iowa City to Ortakent | 5,767.40 mi (9,281.73 km) |
| Iowa City to Ortaklar | 5,734.34 mi (9,228.53 km) |
| Iowa City to Ortakoy | 5,913.64 mi (9,517.09 km) |
| Iowa City to Ortakoy | 5,868.23 mi (9,444.01 km) |
| Iowa City to Osmaneli | 5,692.62 mi (9,161.39 km) |
| Iowa City to Osmaniye | 6,077.85 mi (9,781.36 km) |
| Iowa City to Ozdere | 5,714.01 mi (9,195.81 km) |
| Iowa City to Palu | 6,102.01 mi (9,820.23 km) |
| Iowa City to Pamukkale | 5,790.09 mi (9,318.26 km) |
| Iowa City to Patnos | 6,156.98 mi (9,908.71 km) |
| Iowa City to Pazar | 5,902.28 mi (9,498.80 km) |
| Iowa City to Pazarcik | 6,088.62 mi (9,798.69 km) |
