| National City to Jacksonville (North Carolina) | 2,272.05 mi (3,656.51 km) |
| National City to Jacksonville (Texas) | 1,273.77 mi (2,049.93 km) |
| National City to Jacksonville Beach (Florida) | 2,100.05 mi (3,379.71 km) |
| National City to James Island (South Carolina) | 2,149.15 mi (3,458.72 km) |
| National City to Jamestown (New York) | 2,158.57 mi (3,473.89 km) |
| National City to Jamestown (North Dakota) | 1,380.02 mi (2,220.93 km) |
| National City to Janesville (Wisconsin) | 1,674.36 mi (2,694.62 km) |
| National City to Jasmine Estates (Florida) | 2,061.92 mi (3,318.34 km) |
| National City to Jasper (Alabama) | 1,719.24 mi (2,766.84 km) |
| National City to Jasper (Indiana) | 1,733.04 mi (2,789.06 km) |
| National City to Jefferson (Georgia) | 1,926.14 mi (3,099.83 km) |
| National City to Jefferson (Louisiana) | 1,597.05 mi (2,570.21 km) |
| National City to Jefferson City (Missouri) | 1,452.89 mi (2,338.19 km) |
| National City to Jefferson Hills (Pennsylvania) | 2,114.30 mi (3,402.64 km) |
| National City to Jefferson Valley-Yorktown (New York) | 2,436.39 mi (3,920.99 km) |
