| Port Lavaca to Silver Firs (Washington) | 1,903.18 mi (3,062.87 km) |
| Port Lavaca to Silver Spring (Maryland) | 1,330.34 mi (2,140.98 km) |
| Port Lavaca to Silver Springs Shores (Florida) | 884.30 mi (1,423.15 km) |
| Port Lavaca to Silverdale (Washington) | 1,915.83 mi (3,083.23 km) |
| Port Lavaca to Silverton (Oregon) | 1,822.90 mi (2,933.67 km) |
| Port Lavaca to Simi Valley (California) | 1,357.94 mi (2,185.39 km) |
| Port Lavaca to Simpsonville (South Carolina) | 943.32 mi (1,518.13 km) |
| Port Lavaca to Sioux City (Iowa) | 958.95 mi (1,543.29 km) |
| Port Lavaca to Sioux Falls (South Dakota) | 1,030.99 mi (1,659.22 km) |
| Port Lavaca to Skokie (Illinois) | 1,052.35 mi (1,693.60 km) |
| Port Lavaca to Sleepy Hollow (New York) | 1,544.07 mi (2,484.94 km) |
| Port Lavaca to Slidell (Louisiana) | 427.60 mi (688.16 km) |
| Port Lavaca to Smithfield (North Carolina) | 1,169.02 mi (1,881.36 km) |
| Port Lavaca to Smithfield (Utah) | 1,249.07 mi (2,010.18 km) |
| Port Lavaca to Smithville (Missouri) | 753.56 mi (1,212.74 km) |
