| Iowa City to Ilawa | 4,695.15 mi (7,556.11 km) |
| Iowa City to Imielin | 4,842.96 mi (7,794.00 km) |
| Iowa City to Inowroclaw | 4,690.72 mi (7,548.98 km) |
| Iowa City to Janow Lubelski | 4,918.68 mi (7,915.85 km) |
| Iowa City to Jarocin | 4,703.42 mi (7,569.42 km) |
| Iowa City to Jaroslaw | 4,960.52 mi (7,983.19 km) |
| Iowa City to Jasien | 4,630.64 mi (7,452.30 km) |
| Iowa City to Jaslo | 4,934.67 mi (7,941.58 km) |
| Iowa City to Jastrzebie-Zdroj | 4,830.47 mi (7,773.89 km) |
| Iowa City to Jawor | 4,701.53 mi (7,566.38 km) |
| Iowa City to Jaworzno | 4,841.43 mi (7,791.53 km) |
| Iowa City to Jedrzejow | 4,855.05 mi (7,813.44 km) |
| Iowa City to Jelcz-Laskowice | 4,739.85 mi (7,628.06 km) |
| Iowa City to Jelenia Gora | 4,692.44 mi (7,551.75 km) |
| Iowa City to Jozefoslaw | 4,810.17 mi (7,741.22 km) |
