| Manassas to Silver Firs (Washington) | 2,297.48 mi (3,697.44 km) |
| Manassas to Silver Spring (Maryland) | 30.51 mi (49.10 km) |
| Manassas to Silver Springs Shores (Florida) | 714.35 mi (1,149.63 km) |
| Manassas to Silverdale (Washington) | 2,322.53 mi (3,737.74 km) |
| Manassas to Silverton (Oregon) | 2,338.77 mi (3,763.88 km) |
| Manassas to Simi Valley (California) | 2,293.05 mi (3,690.31 km) |
| Manassas to Simpsonville (South Carolina) | 383.24 mi (616.77 km) |
| Manassas to Sioux City (Iowa) | 1,022.36 mi (1,645.34 km) |
| Manassas to Sioux Falls (South Dakota) | 1,051.91 mi (1,692.89 km) |
| Manassas to Skokie (Illinois) | 585.09 mi (941.61 km) |
| Manassas to Sleepy Hollow (New York) | 250.74 mi (403.53 km) |
| Manassas to Slidell (Louisiana) | 910.54 mi (1,465.37 km) |
| Manassas to Smithfield (North Carolina) | 228.52 mi (367.76 km) |
| Manassas to Smithfield (Utah) | 1,810.29 mi (2,913.38 km) |
| Manassas to Smithville (Missouri) | 916.51 mi (1,474.98 km) |
