| Harmanli to Dumas (Texas) | 6,133.56 mi (9,871.01 km) |
| Harmanli to Dumont (New Jersey) | 4,839.13 mi (7,787.82 km) |
| Harmanli to Duncan (Oklahoma) | 6,068.64 mi (9,766.53 km) |
| Harmanli to Duncanville (Texas) | 6,135.05 mi (9,873.41 km) |
| Harmanli to Dundalk (Maryland) | 5,014.74 mi (8,070.45 km) |
| Harmanli to Dunedin (Florida) | 5,807.17 mi (9,345.74 km) |
| Harmanli to Dunkirk (New York) | 4,982.48 mi (8,018.52 km) |
| Harmanli to Dunmore (Pennsylvania) | 4,883.83 mi (7,859.76 km) |
| Harmanli to Dunwoody (Georgia) | 5,582.67 mi (8,984.44 km) |
| Harmanli to Durango (Colorado) | 6,238.07 mi (10,039.20 km) |
| Harmanli to Durant (Oklahoma) | 6,043.63 mi (9,726.28 km) |
| Harmanli to Durham (North Carolina) | 5,263.83 mi (8,471.32 km) |
| Harmanli to Dyer (Indiana) | 5,334.52 mi (8,585.09 km) |
| Harmanli to Dyersburg (Tennessee) | 5,676.76 mi (9,135.86 km) |
| Harmanli to Eagan (Minnesota) | 5,361.90 mi (8,629.15 km) |
