| Blagoevgrad to Silver Firs (Washington) | 5,874.41 mi (9,453.95 km) |
| Blagoevgrad to Silver Spring (Maryland) | 4,929.50 mi (7,933.26 km) |
| Blagoevgrad to Silver Springs Shores (Florida) | 5,596.41 mi (9,006.55 km) |
| Blagoevgrad to Silverdale (Washington) | 5,897.21 mi (9,490.65 km) |
| Blagoevgrad to Silverton (Oregon) | 6,066.32 mi (9,762.80 km) |
| Blagoevgrad to Simi Valley (California) | 6,638.70 mi (10,683.96 km) |
| Blagoevgrad to Simpsonville (South Carolina) | 5,341.61 mi (8,596.49 km) |
| Blagoevgrad to Sioux City (Iowa) | 5,491.74 mi (8,838.11 km) |
| Blagoevgrad to Sioux Falls (South Dakota) | 5,448.73 mi (8,768.88 km) |
| Blagoevgrad to Skokie (Illinois) | 5,210.25 mi (8,385.09 km) |
| Blagoevgrad to Sleepy Hollow (New York) | 4,709.28 mi (7,578.86 km) |
| Blagoevgrad to Slidell (Louisiana) | 5,868.83 mi (9,444.97 km) |
| Blagoevgrad to Smithfield (North Carolina) | 5,140.89 mi (8,273.46 km) |
| Blagoevgrad to Smithfield (Utah) | 5,998.46 mi (9,653.59 km) |
| Blagoevgrad to Smithville (Missouri) | 5,589.72 mi (8,995.78 km) |
