| Harmanli to Dudley | 1,489.39 mi (2,396.95 km) |
| Harmanli to Dukinfield | 1,511.22 mi (2,432.07 km) |
| Harmanli to Dumbarton | 1,666.34 mi (2,681.71 km) |
| Harmanli to Dumfries | 1,608.36 mi (2,588.41 km) |
| Harmanli to Dunbar | 1,595.45 mi (2,567.63 km) |
| Harmanli to Dunblane | 1,651.47 mi (2,657.79 km) |
| Harmanli to Dundee | 1,624.90 mi (2,615.03 km) |
| Harmanli to Dunfermline | 1,629.75 mi (2,622.83 km) |
| Harmanli to Dunstable | 1,412.82 mi (2,273.71 km) |
| Harmanli to Durham | 1,526.26 mi (2,456.28 km) |
| Harmanli to Ealing | 1,395.78 mi (2,246.29 km) |
| Harmanli to Earlestown | 1,532.57 mi (2,466.43 km) |
| Harmanli to Earley | 1,420.06 mi (2,285.37 km) |
| Harmanli to East Barnet | 1,392.96 mi (2,241.75 km) |
| Harmanli to East Dereham | 1,374.41 mi (2,211.90 km) |
