| Sligo to Silver Firs (Washington) | 4,394.18 mi (7,071.75 km) |
| Sligo to Silver Spring (Maryland) | 3,274.69 mi (5,270.11 km) |
| Sligo to Silver Springs Shores (Florida) | 3,962.15 mi (6,376.47 km) |
| Sligo to Silverdale (Washington) | 4,419.86 mi (7,113.08 km) |
| Sligo to Silverton (Oregon) | 4,571.55 mi (7,357.20 km) |
| Sligo to Simi Valley (California) | 5,054.17 mi (8,133.90 km) |
| Sligo to Simpsonville (South Carolina) | 3,687.90 mi (5,935.11 km) |
| Sligo to Sioux City (Iowa) | 3,845.79 mi (6,189.19 km) |
| Sligo to Sioux Falls (South Dakota) | 3,807.17 mi (6,127.05 km) |
| Sligo to Skokie (Illinois) | 3,548.77 mi (5,711.19 km) |
| Sligo to Sleepy Hollow (New York) | 3,054.27 mi (4,915.38 km) |
| Sligo to Slidell (Louisiana) | 4,210.69 mi (6,776.45 km) |
| Sligo to Smithfield (North Carolina) | 3,493.89 mi (5,622.87 km) |
| Sligo to Smithfield (Utah) | 4,410.38 mi (7,097.82 km) |
| Sligo to Smithville (Missouri) | 3,932.29 mi (6,328.41 km) |
