| San Juan to Jeffersontown (Kentucky) | 1,803.27 mi (2,902.08 km) |
| San Juan to Jeffersonville (Indiana) | 1,814.81 mi (2,920.65 km) |
| San Juan to Jenison (Michigan) | 2,049.48 mi (3,298.32 km) |
| San Juan to Jenks (Oklahoma) | 2,189.38 mi (3,523.47 km) |
| San Juan to Jennings (Missouri) | 2,019.61 mi (3,250.25 km) |
| San Juan to Jensen Beach (Florida) | 1,089.05 mi (1,752.66 km) |
| San Juan to Jericho (New York) | 1,609.29 mi (2,589.90 km) |
| San Juan to Jerome (Idaho) | 3,277.20 mi (5,274.14 km) |
| San Juan to Jersey City (New Jersey) | 1,613.68 mi (2,596.97 km) |
| San Juan to Jessup (Maryland) | 1,570.86 mi (2,528.05 km) |
| San Juan to Johns Creek (Georgia) | 1,554.29 mi (2,501.40 km) |
| San Juan to Johnson City (New York) | 1,739.47 mi (2,799.41 km) |
| San Juan to Johnson City (Tennessee) | 1,588.46 mi (2,556.38 km) |
| San Juan to Johnston (Iowa) | 2,288.52 mi (3,683.02 km) |
| San Juan to Johnstown (Colorado) | 2,756.36 mi (4,435.94 km) |
