| Iowa City to Dormagen | 4,374.34 mi (7,039.82 km) |
| Iowa City to Dornstadt | 4,593.47 mi (7,392.47 km) |
| Iowa City to Dorsten | 4,357.92 mi (7,013.39 km) |
| Iowa City to Dortmund | 4,381.32 mi (7,051.06 km) |
| Iowa City to Dorverden | 4,390.50 mi (7,065.83 km) |
| Iowa City to Dossenheim | 4,506.91 mi (7,253.17 km) |
| Iowa City to Dreieich | 4,485.64 mi (7,218.94 km) |
| Iowa City to Drensteinfurt | 4,380.12 mi (7,049.12 km) |
| Iowa City to Dresden | 4,618.65 mi (7,432.99 km) |
| Iowa City to Drochtersen | 4,362.07 mi (7,020.07 km) |
| Iowa City to Drolshagen | 4,410.96 mi (7,098.75 km) |
| Iowa City to Duderstadt | 4,479.57 mi (7,209.18 km) |
| Iowa City to Duisburg | 4,359.44 mi (7,015.84 km) |
| Iowa City to Dulmen | 4,362.43 mi (7,020.66 km) |
| Iowa City to Duren | 4,373.96 mi (7,039.20 km) |
