| Sankt Gallen to Dendermonde | 344.42 mi (554.29 km) |
| Sankt Gallen to Dessel | 325.40 mi (523.67 km) |
| Sankt Gallen to Destelbergen | 354.66 mi (570.77 km) |
| Sankt Gallen to Deurne | 343.08 mi (552.13 km) |
| Sankt Gallen to Diepenbeek | 299.59 mi (482.15 km) |
| Sankt Gallen to Diest | 313.80 mi (505.01 km) |
| Sankt Gallen to Diksmuide | 384.85 mi (619.36 km) |
| Sankt Gallen to Dilbeek | 330.13 mi (531.29 km) |
| Sankt Gallen to Dinant | 282.02 mi (453.87 km) |
| Sankt Gallen to Dison | 272.15 mi (437.99 km) |
| Sankt Gallen to Dour | 326.42 mi (525.33 km) |
| Sankt Gallen to Drongen | 358.94 mi (577.65 km) |
| Sankt Gallen to Duffel | 335.12 mi (539.33 km) |
| Sankt Gallen to Durbuy | 269.28 mi (433.37 km) |
| Sankt Gallen to Ecaussinnes-Lalaing | 319.93 mi (514.88 km) |
