| Sliven to Dendermonde | 1,191.74 mi (1,917.93 km) |
| Sliven to Dessel | 1,155.72 mi (1,859.95 km) |
| Sliven to Destelbergen | 1,204.38 mi (1,938.26 km) |
| Sliven to Deurne | 1,181.76 mi (1,901.85 km) |
| Sliven to Diepenbeek | 1,135.12 mi (1,826.80 km) |
| Sliven to Diest | 1,151.91 mi (1,853.82 km) |
| Sliven to Diksmuide | 1,242.29 mi (1,999.28 km) |
| Sliven to Dilbeek | 1,180.86 mi (1,900.42 km) |
| Sliven to Dinant | 1,140.21 mi (1,834.99 km) |
| Sliven to Dison | 1,110.12 mi (1,786.57 km) |
| Sliven to Dour | 1,190.60 mi (1,916.09 km) |
| Sliven to Drongen | 1,209.83 mi (1,947.03 km) |
| Sliven to Duffel | 1,176.44 mi (1,893.30 km) |
| Sliven to Durbuy | 1,119.77 mi (1,802.09 km) |
| Sliven to Ecaussinnes-Lalaing | 1,177.49 mi (1,894.99 km) |
