| Portimao to Dendermonde | 1,143.31 mi (1,839.98 km) |
| Portimao to Dessel | 1,181.69 mi (1,901.75 km) |
| Portimao to Destelbergen | 1,136.32 mi (1,828.72 km) |
| Portimao to Deurne | 1,163.41 mi (1,872.33 km) |
| Portimao to Diepenbeek | 1,173.03 mi (1,887.82 km) |
| Portimao to Diest | 1,166.71 mi (1,877.64 km) |
| Portimao to Diksmuide | 1,111.64 mi (1,789.02 km) |
| Portimao to Dilbeek | 1,136.48 mi (1,828.99 km) |
| Portimao to Dinant | 1,125.29 mi (1,810.97 km) |
| Portimao to Dison | 1,170.77 mi (1,884.17 km) |
| Portimao to Dour | 1,100.13 mi (1,770.48 km) |
| Portimao to Drongen | 1,132.85 mi (1,823.14 km) |
| Portimao to Duffel | 1,158.12 mi (1,863.82 km) |
| Portimao to Durbuy | 1,145.60 mi (1,843.66 km) |
| Portimao to Ecaussinnes-Lalaing | 1,120.29 mi (1,802.93 km) |
