| Iowa City to Dendermonde | 4,278.37 mi (6,885.36 km) |
| Iowa City to Dessel | 4,307.91 mi (6,932.92 km) |
| Iowa City to Destelbergen | 4,266.75 mi (6,866.67 km) |
| Iowa City to Deurne | 4,284.47 mi (6,895.19 km) |
| Iowa City to Diepenbeek | 4,331.19 mi (6,970.38 km) |
| Iowa City to Diest | 4,314.93 mi (6,944.21 km) |
| Iowa City to Diksmuide | 4,233.02 mi (6,812.39 km) |
| Iowa City to Dilbeek | 4,291.32 mi (6,906.21 km) |
| Iowa City to Dinant | 4,337.21 mi (6,980.07 km) |
| Iowa City to Dison | 4,358.04 mi (7,013.59 km) |
| Iowa City to Dour | 4,290.26 mi (6,904.51 km) |
| Iowa City to Drongen | 4,261.86 mi (6,858.80 km) |
| Iowa City to Duffel | 4,291.11 mi (6,905.87 km) |
| Iowa City to Durbuy | 4,353.80 mi (7,006.76 km) |
| Iowa City to Ecaussinnes-Lalaing | 4,298.84 mi (6,918.32 km) |
