| South San Francisco to Bonham (Texas) | 1,494.61 mi (2,405.34 km) |
| South San Francisco to Bonita (California) | 459.72 mi (739.84 km) |
| South San Francisco to Bonita Springs (Florida) | 2,483.62 mi (3,997.00 km) |
| South San Francisco to Bonney Lake (Washington) | 658.26 mi (1,059.36 km) |
| South San Francisco to Boone (Iowa) | 1,536.65 mi (2,473.00 km) |
| South San Francisco to Boone (North Carolina) | 2,235.15 mi (3,597.13 km) |
| South San Francisco to Borger (Texas) | 1,170.65 mi (1,883.98 km) |
| South San Francisco to Bossier City (Louisiana) | 1,656.89 mi (2,666.50 km) |
| South San Francisco to Boston (Massachusetts) | 2,695.38 mi (4,337.79 km) |
| South San Francisco to Bostonia (California) | 454.73 mi (731.81 km) |
| South San Francisco to Bothell (Washington) | 699.29 mi (1,125.40 km) |
| South San Francisco to Bothell East (Washington) | 701.58 mi (1,129.08 km) |
| South San Francisco to Bothell West (Washington) | 701.48 mi (1,128.92 km) |
| South San Francisco to Boulder (Colorado) | 936.77 mi (1,507.58 km) |
| South San Francisco to Boulder City (Nevada) | 433.24 mi (697.23 km) |
