| Gahanna to Silver Firs (Washington) | 2,004.30 mi (3,225.61 km) |
| Gahanna to Silver Spring (Maryland) | 319.30 mi (513.86 km) |
| Gahanna to Silver Springs Shores (Florida) | 755.51 mi (1,215.88 km) |
| Gahanna to Silverdale (Washington) | 2,028.92 mi (3,265.24 km) |
| Gahanna to Silverton (Oregon) | 2,040.66 mi (3,284.12 km) |
| Gahanna to Simi Valley (California) | 2,001.96 mi (3,221.84 km) |
| Gahanna to Simpsonville (South Carolina) | 367.46 mi (591.36 km) |
| Gahanna to Sioux City (Iowa) | 722.12 mi (1,162.14 km) |
| Gahanna to Sioux Falls (South Dakota) | 753.51 mi (1,212.66 km) |
| Gahanna to Skokie (Illinois) | 289.59 mi (466.05 km) |
| Gahanna to Sleepy Hollow (New York) | 477.50 mi (768.46 km) |
| Gahanna to Slidell (Louisiana) | 777.39 mi (1,251.09 km) |
| Gahanna to Smithfield (North Carolina) | 397.33 mi (639.43 km) |
| Gahanna to Smithfield (Utah) | 1,509.86 mi (2,429.88 km) |
| Gahanna to Smithville (Missouri) | 623.57 mi (1,003.54 km) |
