| San Mateo to Blue Island (Illinois) | 1,852.53 mi (2,981.36 km) |
| San Mateo to Blue Springs (Missouri) | 1,518.11 mi (2,443.16 km) |
| San Mateo to Bluffdale (Utah) | 591.95 mi (952.65 km) |
| San Mateo to Bluffton (Indiana) | 1,987.32 mi (3,198.29 km) |
| San Mateo to Bluffton (South Carolina) | 2,355.11 mi (3,790.19 km) |
| San Mateo to Blythe (California) | 510.19 mi (821.07 km) |
| San Mateo to Blytheville (Arkansas) | 1,788.90 mi (2,878.95 km) |
| San Mateo to Boca Raton (Florida) | 2,567.85 mi (4,132.55 km) |
| San Mateo to Boerne (Texas) | 1,453.41 mi (2,339.03 km) |
| San Mateo to Bogalusa (Louisiana) | 1,902.87 mi (3,062.37 km) |
| San Mateo to Boiling Springs (South Carolina) | 2,235.51 mi (3,597.71 km) |
| San Mateo to Boise (Idaho) | 525.50 mi (845.70 km) |
| San Mateo to Bolingbrook (Illinois) | 1,830.72 mi (2,946.26 km) |
| San Mateo to Bolivar (Missouri) | 1,575.87 mi (2,536.11 km) |
| San Mateo to Bon Air (Virginia) | 2,427.36 mi (3,906.46 km) |
