| San Bruno to Olympia (Washington) | 651.02 mi (1,047.71 km) |
| San Bruno to Olympia Heights (Florida) | 2,583.80 mi (4,158.22 km) |
| San Bruno to Omaha (Nebraska) | 1,424.02 mi (2,291.74 km) |
| San Bruno to On Top of the World Designated Place (Florida) | 2,371.00 mi (3,815.76 km) |
| San Bruno to Onalaska (Wisconsin) | 1,679.47 mi (2,702.84 km) |
| San Bruno to Oneida (New York) | 2,458.98 mi (3,957.35 km) |
| San Bruno to Oneonta (New York) | 2,494.90 mi (4,015.16 km) |
| San Bruno to Ontario (California) | 366.57 mi (589.93 km) |
| San Bruno to Ontario (Oregon) | 525.93 mi (846.41 km) |
| San Bruno to Opa-locka (Florida) | 2,582.48 mi (4,156.10 km) |
| San Bruno to Opelika (Alabama) | 2,107.56 mi (3,391.79 km) |
| San Bruno to Opelousas (Louisiana) | 1,796.06 mi (2,890.49 km) |
| San Bruno to Orange (California) | 369.49 mi (594.63 km) |
| San Bruno to Orange (Texas) | 1,716.65 mi (2,762.68 km) |
| San Bruno to Orange City (Florida) | 2,430.63 mi (3,911.72 km) |
