| Security-Widefield to Smyrna (Delaware) | 1,556.07 mi (2,504.26 km) |
| Security-Widefield to Smyrna (Georgia) | 1,171.33 mi (1,885.08 km) |
| Security-Widefield to Smyrna (Tennessee) | 1,015.37 mi (1,634.07 km) |
| Security-Widefield to Snellville (Georgia) | 1,198.72 mi (1,929.15 km) |
| Security-Widefield to Snoqualmie (Washington) | 1,051.55 mi (1,692.30 km) |
| Security-Widefield to Snyder (Texas) | 468.27 mi (753.61 km) |
| Security-Widefield to Socastee (South Carolina) | 1,469.65 mi (2,365.17 km) |
| Security-Widefield to Socorro (Texas) | 498.96 mi (803.01 km) |
| Security-Widefield to Soddy-Daisy (Tennessee) | 1,102.56 mi (1,774.40 km) |
| Security-Widefield to Solana Beach (California) | 805.94 mi (1,297.03 km) |
| Security-Widefield to Soledad (California) | 922.81 mi (1,485.12 km) |
| Security-Widefield to Solon (Ohio) | 1,240.23 mi (1,995.96 km) |
| Security-Widefield to Somers Point (New Jersey) | 1,608.87 mi (2,589.22 km) |
| Security-Widefield to Somerset (Kentucky) | 1,099.59 mi (1,769.62 km) |
| Security-Widefield to Somerset (New Jersey) | 1,604.53 mi (2,582.24 km) |
