| San Juan to Blue Island (Illinois) | 2,050.31 mi (3,299.66 km) |
| San Juan to Blue Springs (Missouri) | 2,208.41 mi (3,554.09 km) |
| San Juan to Bluffdale (Utah) | 3,107.56 mi (5,001.13 km) |
| San Juan to Bluffton (Indiana) | 1,914.75 mi (3,081.49 km) |
| San Juan to Bluffton (South Carolina) | 1,328.91 mi (2,138.67 km) |
| San Juan to Blythe (California) | 3,161.38 mi (5,087.74 km) |
| San Juan to Blytheville (Arkansas) | 1,891.89 mi (3,044.70 km) |
| San Juan to Boca Raton (Florida) | 1,051.92 mi (1,692.90 km) |
| San Juan to Boerne (Texas) | 2,196.03 mi (3,534.17 km) |
| San Juan to Bogalusa (Louisiana) | 1,717.09 mi (2,763.39 km) |
| San Juan to Boiling Springs (South Carolina) | 1,508.15 mi (2,427.13 km) |
| San Juan to Boise (Idaho) | 3,376.47 mi (5,433.91 km) |
| San Juan to Bolingbrook (Illinois) | 2,067.31 mi (3,327.02 km) |
| San Juan to Bolivar (Missouri) | 2,117.97 mi (3,408.55 km) |
| San Juan to Bon Air (Virginia) | 1,493.26 mi (2,403.18 km) |
