| Dumbarton to Cutrofiano | 1,503.96 mi (2,420.39 km) |
| Dumbarton to Dalmine | 939.32 mi (1,511.69 km) |
| Dumbarton to Deruta | 1,170.07 mi (1,883.05 km) |
| Dumbarton to Desenzano del Garda | 976.13 mi (1,570.93 km) |
| Dumbarton to Desio | 930.50 mi (1,497.49 km) |
| Dumbarton to Dolianova | 1,305.85 mi (2,101.57 km) |
| Dumbarton to Dolo | 1,024.16 mi (1,648.23 km) |
| Dumbarton to Domodossola | 876.76 mi (1,411.01 km) |
| Dumbarton to Dorgali | 1,257.51 mi (2,023.77 km) |
| Dumbarton to Dueville | 997.13 mi (1,604.73 km) |
| Dumbarton to Eboli | 1,381.54 mi (2,223.38 km) |
| Dumbarton to Elmas | 1,310.30 mi (2,108.72 km) |
| Dumbarton to Empoli | 1,086.94 mi (1,749.26 km) |
| Dumbarton to Enna | 1,541.26 mi (2,480.42 km) |
| Dumbarton to Eraclea | 1,034.50 mi (1,664.87 km) |
