| Pen-y-Bont ar Ogwr to Dendermonde | 333.38 mi (536.52 km) |
| Pen-y-Bont ar Ogwr to Dessel | 375.31 mi (604.00 km) |
| Pen-y-Bont ar Ogwr to Destelbergen | 320.32 mi (515.50 km) |
| Pen-y-Bont ar Ogwr to Deurne | 347.24 mi (558.83 km) |
| Pen-y-Bont ar Ogwr to Diepenbeek | 391.36 mi (629.83 km) |
| Pen-y-Bont ar Ogwr to Diest | 374.77 mi (603.13 km) |
| Pen-y-Bont ar Ogwr to Diksmuide | 280.43 mi (451.31 km) |
| Pen-y-Bont ar Ogwr to Dilbeek | 342.15 mi (550.64 km) |
| Pen-y-Bont ar Ogwr to Dinant | 379.83 mi (611.28 km) |
| Pen-y-Bont ar Ogwr to Dison | 413.71 mi (665.81 km) |
| Pen-y-Bont ar Ogwr to Dour | 329.20 mi (529.80 km) |
| Pen-y-Bont ar Ogwr to Drongen | 314.59 mi (506.29 km) |
| Pen-y-Bont ar Ogwr to Duffel | 350.63 mi (564.29 km) |
| Pen-y-Bont ar Ogwr to Durbuy | 401.17 mi (645.63 km) |
| Pen-y-Bont ar Ogwr to Ecaussinnes-Lalaing | 343.25 mi (552.41 km) |
