| South San Francisco to Medford (Massachusetts) | 2,692.84 mi (4,333.71 km) |
| South San Francisco to Medford (New York) | 2,619.35 mi (4,215.43 km) |
| South San Francisco to Medford (Oregon) | 324.41 mi (522.08 km) |
| South San Francisco to Medina (Ohio) | 2,158.88 mi (3,474.38 km) |
| South San Francisco to Medulla (Florida) | 2,421.45 mi (3,896.95 km) |
| South San Francisco to Mehlville (Missouri) | 1,738.22 mi (2,797.40 km) |
| South San Francisco to Melbourne (Florida) | 2,489.08 mi (4,005.79 km) |
| South San Francisco to Melissa (Texas) | 1,481.19 mi (2,383.74 km) |
| South San Francisco to Melrose (Massachusetts) | 2,694.92 mi (4,337.05 km) |
| South San Francisco to Melrose Park (Illinois) | 1,845.51 mi (2,970.06 km) |
| South San Francisco to Melville (New York) | 2,598.25 mi (4,181.48 km) |
| South San Francisco to Melvindale (Michigan) | 2,083.70 mi (3,353.39 km) |
| South San Francisco to Memphis (Florida) | 2,403.06 mi (3,867.35 km) |
| South San Francisco to Memphis (Tennessee) | 1,804.79 mi (2,904.53 km) |
| South San Francisco to Menasha (Wisconsin) | 1,817.20 mi (2,924.51 km) |
