| Iowa City to Devnya | 5,460.24 mi (8,787.41 km) |
| Iowa City to Dimitrovgrad | 5,452.87 mi (8,775.55 km) |
| Iowa City to Dobrich | 5,451.06 mi (8,772.63 km) |
| Iowa City to Dospat | 5,422.74 mi (8,727.05 km) |
| Iowa City to Dupnitsa | 5,354.80 mi (8,617.72 km) |
| Iowa City to Elhovo | 5,480.32 mi (8,819.72 km) |
| Iowa City to Etropole | 5,357.59 mi (8,622.21 km) |
| Iowa City to Gabrovo | 5,402.22 mi (8,694.04 km) |
| Iowa City to Gorna Oryahovitsa | 5,401.31 mi (8,692.57 km) |
| Iowa City to Gotse Delchev | 5,411.49 mi (8,708.96 km) |
| Iowa City to Harmanli | 5,469.23 mi (8,801.87 km) |
| Iowa City to Haskovo | 5,457.64 mi (8,783.22 km) |
| Iowa City to Ihtiman | 5,370.92 mi (8,643.67 km) |
| Iowa City to Isperih | 5,409.97 mi (8,706.50 km) |
| Iowa City to Kardzhali | 5,465.04 mi (8,795.13 km) |
