| Sulmona to Silver Firs (Washington) | 5,671.05 mi (9,126.68 km) |
| Sulmona to Silver Spring (Maryland) | 4,537.42 mi (7,302.27 km) |
| Sulmona to Silver Springs Shores (Florida) | 5,182.48 mi (8,340.39 km) |
| Sulmona to Silverdale (Washington) | 5,695.52 mi (9,166.06 km) |
| Sulmona to Silverton (Oregon) | 5,855.89 mi (9,424.14 km) |
| Sulmona to Simi Valley (California) | 6,372.39 mi (10,255.37 km) |
| Sulmona to Simpsonville (South Carolina) | 4,946.37 mi (7,960.41 km) |
| Sulmona to Sioux City (Iowa) | 5,167.56 mi (8,316.38 km) |
| Sulmona to Sioux Falls (South Dakota) | 5,130.08 mi (8,256.07 km) |
| Sulmona to Skokie (Illinois) | 4,857.92 mi (7,818.06 km) |
| Sulmona to Sleepy Hollow (New York) | 4,318.45 mi (6,949.88 km) |
| Sulmona to Slidell (Louisiana) | 5,478.43 mi (8,816.68 km) |
| Sulmona to Smithfield (North Carolina) | 4,739.05 mi (7,626.77 km) |
| Sulmona to Smithfield (Utah) | 5,728.47 mi (9,219.08 km) |
| Sulmona to Smithville (Missouri) | 5,246.96 mi (8,444.17 km) |
