| Sycamore to Siloam Springs (Arkansas) | 509.25 mi (819.56 km) |
| Sycamore to Silver Firs (Washington) | 1,672.35 mi (2,691.39 km) |
| Sycamore to Silver Spring (Maryland) | 646.01 mi (1,039.65 km) |
| Sycamore to Silver Springs Shores (Florida) | 965.01 mi (1,553.03 km) |
| Sycamore to Silverdale (Washington) | 1,696.84 mi (2,730.80 km) |
| Sycamore to Silverton (Oregon) | 1,708.79 mi (2,750.04 km) |
| Sycamore to Simi Valley (California) | 1,708.87 mi (2,750.17 km) |
| Sycamore to Simpsonville (South Carolina) | 610.54 mi (982.57 km) |
| Sycamore to Sioux City (Iowa) | 395.62 mi (636.69 km) |
| Sycamore to Sioux Falls (South Dakota) | 421.78 mi (678.79 km) |
| Sycamore to Skokie (Illinois) | 48.44 mi (77.96 km) |
| Sycamore to Sleepy Hollow (New York) | 767.42 mi (1,235.04 km) |
| Sycamore to Slidell (Louisiana) | 811.18 mi (1,305.47 km) |
| Sycamore to Smithfield (North Carolina) | 713.62 mi (1,148.47 km) |
| Sycamore to Smithfield (Utah) | 1,186.37 mi (1,909.28 km) |
