| National City to Norton Shores (Michigan) | 1,817.89 mi (2,925.61 km) |
| National City to Norwalk (California) | 102.92 mi (165.63 km) |
| National City to Norwalk (Connecticut) | 2,456.19 mi (3,952.86 km) |
| National City to Norwalk (Iowa) | 1,420.96 mi (2,286.81 km) |
| National City to Norwalk (Ohio) | 1,979.63 mi (3,185.90 km) |
| National City to Norwich (Connecticut) | 2,524.97 mi (4,063.54 km) |
| National City to Norwood (Ohio) | 1,870.21 mi (3,009.81 km) |
| National City to Novato (California) | 484.73 mi (780.10 km) |
| National City to Novi (Michigan) | 1,946.12 mi (3,131.98 km) |
| National City to O'Fallon (Illinois) | 1,574.19 mi (2,533.41 km) |
| National City to O'Fallon (Missouri) | 1,532.89 mi (2,466.95 km) |
| National City to Oak Creek (Wisconsin) | 1,732.35 mi (2,787.95 km) |
| National City to Oak Forest (Illinois) | 1,720.11 mi (2,768.25 km) |
| National City to Oak Grove (Oregon) | 929.11 mi (1,495.26 km) |
| National City to Oak Grove (South Carolina) | 2,066.97 mi (3,326.47 km) |
