| South San Francisco to Bixby (Oklahoma) | 1,468.28 mi (2,362.97 km) |
| South San Francisco to Black Forest (Colorado) | 964.74 mi (1,552.60 km) |
| South San Francisco to Blackfoot (Idaho) | 652.92 mi (1,050.78 km) |
| South San Francisco to Blackhawk (California) | 30.16 mi (48.54 km) |
| South San Francisco to Blacksburg (Virginia) | 2,284.09 mi (3,675.88 km) |
| South San Francisco to Blackwells Mills (New Jersey) | 2,541.42 mi (4,090.02 km) |
| South San Francisco to Blaine (Minnesota) | 1,589.99 mi (2,558.84 km) |
| South San Francisco to Bloomingdale (Florida) | 2,408.84 mi (3,876.66 km) |
| South San Francisco to Bloomingdale (Illinois) | 1,833.77 mi (2,951.17 km) |
| South San Francisco to Bloomington (California) | 374.89 mi (603.32 km) |
| South San Francisco to Bloomington (Illinois) | 1,794.20 mi (2,887.49 km) |
| South San Francisco to Bloomington (Indiana) | 1,933.46 mi (3,111.60 km) |
| South San Francisco to Bloomington (Minnesota) | 1,581.38 mi (2,544.99 km) |
| South San Francisco to Bloomsburg (Pennsylvania) | 2,439.07 mi (3,925.30 km) |
| South San Francisco to Blue Ash (Ohio) | 2,045.96 mi (3,292.65 km) |
