| Olean to Dendermonde | 3,760.52 mi (6,051.97 km) |
| Olean to Dessel | 3,794.39 mi (6,106.47 km) |
| Olean to Destelbergen | 3,748.23 mi (6,032.19 km) |
| Olean to Deurne | 3,769.09 mi (6,065.77 km) |
| Olean to Diepenbeek | 3,815.97 mi (6,141.21 km) |
| Olean to Diest | 3,799.29 mi (6,114.37 km) |
| Olean to Diksmuide | 3,711.89 mi (5,973.71 km) |
| Olean to Dilbeek | 3,772.33 mi (6,070.98 km) |
| Olean to Dinant | 3,815.72 mi (6,140.81 km) |
| Olean to Dison | 3,841.80 mi (6,182.78 km) |
| Olean to Dour | 3,766.67 mi (6,061.87 km) |
| Olean to Drongen | 3,742.98 mi (6,023.74 km) |
| Olean to Duffel | 3,774.90 mi (6,075.12 km) |
| Olean to Durbuy | 3,834.45 mi (6,170.95 km) |
| Olean to Ecaussinnes-Lalaing | 3,777.63 mi (6,079.50 km) |
