| South San Francisco to Norwich | 5,345.30 mi (8,602.43 km) |
| South San Francisco to Nottingham | 5,258.96 mi (8,463.48 km) |
| South San Francisco to Nuneaton | 5,270.97 mi (8,482.80 km) |
| South San Francisco to Oadby | 5,278.69 mi (8,495.23 km) |
| South San Francisco to Oakengates | 5,233.51 mi (8,422.52 km) |
| South San Francisco to Oakham | 5,285.10 mi (8,505.55 km) |
| South San Francisco to Oldbury | 5,255.70 mi (8,458.23 km) |
| South San Francisco to Oldham | 5,201.81 mi (8,371.51 km) |
| South San Francisco to Ollerton | 5,250.49 mi (8,449.85 km) |
| South San Francisco to Olton | 5,265.22 mi (8,473.55 km) |
| South San Francisco to Omagh | 4,999.41 mi (8,045.77 km) |
| South San Francisco to Ormesby | 5,179.20 mi (8,335.12 km) |
| South San Francisco to Ormskirk | 5,178.30 mi (8,333.67 km) |
| South San Francisco to Orpington | 5,374.44 mi (8,649.33 km) |
| South San Francisco to Ossett | 5,210.67 mi (8,385.76 km) |
