| South San Francisco to Sumter (South Carolina) | 2,349.55 mi (3,781.23 km) |
| South San Francisco to Sun City (Arizona) | 633.46 mi (1,019.45 km) |
| South San Francisco to Sun City Center (Florida) | 2,408.78 mi (3,876.56 km) |
| South San Francisco to Sun City West (Arizona) | 627.89 mi (1,010.49 km) |
| South San Francisco to Sun Lakes (Arizona) | 667.78 mi (1,074.68 km) |
| South San Francisco to Sun Prairie (Wisconsin) | 1,774.54 mi (2,855.85 km) |
| South San Francisco to Sun Valley (Nevada) | 196.50 mi (316.24 km) |
| South San Francisco to Sun Village (California) | 328.25 mi (528.26 km) |
| South San Francisco to Sunland Park (New Mexico) | 983.02 mi (1,582.01 km) |
| South San Francisco to Sunny Isles Beach (Florida) | 2,587.85 mi (4,164.74 km) |
| South San Francisco to Sunnyside (Washington) | 611.10 mi (983.47 km) |
| South San Francisco to Sunnyvale (California) | 28.55 mi (45.94 km) |
| South San Francisco to Sunrise (Florida) | 2,571.14 mi (4,137.85 km) |
| South San Francisco to Sunrise Manor (Nevada) | 419.62 mi (675.31 km) |
| South San Francisco to Sunset (Florida) | 2,583.20 mi (4,157.26 km) |
