| Harmanli to Silver Firs (Washington) | 5,932.87 mi (9,548.03 km) |
| Harmanli to Silver Spring (Maryland) | 5,048.20 mi (8,124.30 km) |
| Harmanli to Silver Springs Shores (Florida) | 5,721.44 mi (9,207.76 km) |
| Harmanli to Silverdale (Washington) | 5,955.10 mi (9,583.81 km) |
| Harmanli to Silverton (Oregon) | 6,126.54 mi (9,859.72 km) |
| Harmanli to Simi Valley (California) | 6,715.28 mi (10,807.20 km) |
| Harmanli to Simpsonville (South Carolina) | 5,460.91 mi (8,788.48 km) |
| Harmanli to Sioux City (Iowa) | 5,588.60 mi (8,993.99 km) |
| Harmanli to Sioux Falls (South Dakota) | 5,543.93 mi (8,922.10 km) |
| Harmanli to Skokie (Illinois) | 5,316.29 mi (8,555.74 km) |
| Harmanli to Sleepy Hollow (New York) | 4,827.83 mi (7,769.64 km) |
| Harmanli to Slidell (Louisiana) | 5,986.10 mi (9,633.69 km) |
| Harmanli to Smithfield (North Carolina) | 5,262.44 mi (8,469.08 km) |
| Harmanli to Smithfield (Utah) | 6,077.47 mi (9,780.74 km) |
| Harmanli to Smithville (Missouri) | 5,692.24 mi (9,160.77 km) |
