| South San Francisco to Bonhill | 5,014.61 mi (8,070.23 km) |
| South San Francisco to Bonnyrigg | 5,060.95 mi (8,144.82 km) |
| South San Francisco to Bootle | 5,181.15 mi (8,338.25 km) |
| South San Francisco to Borehamwood | 5,349.24 mi (8,608.77 km) |
| South San Francisco to Boscombe | 5,348.70 mi (8,607.91 km) |
| South San Francisco to Boston | 5,290.44 mi (8,514.14 km) |
| South San Francisco to Bottesford | 5,243.00 mi (8,437.80 km) |
| South San Francisco to Bourne | 5,290.51 mi (8,514.26 km) |
| South San Francisco to Bournemouth | 5,347.73 mi (8,606.34 km) |
| South San Francisco to Bournville | 5,261.77 mi (8,467.99 km) |
| South San Francisco to Bovingdon | 5,338.17 mi (8,590.96 km) |
| South San Francisco to Bowdon | 5,202.78 mi (8,373.07 km) |
| South San Francisco to Boxley | 5,391.13 mi (8,676.19 km) |
| South San Francisco to Brackley | 5,304.75 mi (8,537.17 km) |
| South San Francisco to Bracknell | 5,347.24 mi (8,605.56 km) |
