| National City to Romeoville (Illinois) | 1,702.92 mi (2,740.59 km) |
| National City to Romulus (Michigan) | 1,949.62 mi (3,137.61 km) |
| National City to Ronkonkoma (New York) | 2,472.03 mi (3,978.35 km) |
| National City to Roosevelt (New York) | 2,448.18 mi (3,939.96 km) |
| National City to Rosamond (California) | 165.02 mi (265.57 km) |
| National City to Rosaryville (Maryland) | 2,279.39 mi (3,668.33 km) |
| National City to Roscoe (Illinois) | 1,670.03 mi (2,687.65 km) |
| National City to Rose Hill (Virginia) | 2,264.17 mi (3,643.83 km) |
| National City to Roseburg (Oregon) | 804.52 mi (1,294.76 km) |
| National City to Rosedale (California) | 223.52 mi (359.71 km) |
| National City to Rosedale (Maryland) | 2,295.36 mi (3,694.03 km) |
| National City to Roselle (Illinois) | 1,708.72 mi (2,749.91 km) |
| National City to Roselle (New Jersey) | 2,412.77 mi (3,882.98 km) |
| National City to Roselle Park (New Jersey) | 2,412.41 mi (3,882.40 km) |
| National City to Rosemead (California) | 112.37 mi (180.84 km) |
