| Tuscaloosa to Siloam Springs (Arkansas) | 446.85 mi (719.13 km) |
| Tuscaloosa to Silver Firs (Washington) | 2,055.47 mi (3,307.95 km) |
| Tuscaloosa to Silver Spring (Maryland) | 708.22 mi (1,139.77 km) |
| Tuscaloosa to Silver Springs Shores (Florida) | 432.64 mi (696.26 km) |
| Tuscaloosa to Silverdale (Washington) | 2,075.42 mi (3,340.06 km) |
| Tuscaloosa to Silverton (Oregon) | 2,036.96 mi (3,278.18 km) |
| Tuscaloosa to Simi Valley (California) | 1,788.05 mi (2,877.59 km) |
| Tuscaloosa to Simpsonville (South Carolina) | 319.03 mi (513.44 km) |
| Tuscaloosa to Sioux City (Iowa) | 800.98 mi (1,289.05 km) |
| Tuscaloosa to Sioux Falls (South Dakota) | 867.92 mi (1,396.77 km) |
| Tuscaloosa to Skokie (Illinois) | 608.22 mi (978.83 km) |
| Tuscaloosa to Sleepy Hollow (New York) | 925.58 mi (1,489.58 km) |
| Tuscaloosa to Slidell (Louisiana) | 242.88 mi (390.88 km) |
| Tuscaloosa to Smithfield (North Carolina) | 546.27 mi (879.14 km) |
| Tuscaloosa to Smithfield (Utah) | 1,451.36 mi (2,335.74 km) |
