| National City to Fortuna (California) | 671.82 mi (1,081.19 km) |
| National City to Fortuna Foothills (Arizona) | 157.10 mi (252.82 km) |
| National City to Foster City (California) | 446.44 mi (718.48 km) |
| National City to Fostoria (Ohio) | 1,937.48 mi (3,118.07 km) |
| National City to Fountain (Colorado) | 810.53 mi (1,304.43 km) |
| National City to Fountain Hills (Arizona) | 316.74 mi (509.75 km) |
| National City to Fountain Inn (South Carolina) | 2,001.34 mi (3,220.85 km) |
| National City to Fountain Valley (California) | 87.45 mi (140.74 km) |
| National City to Fountainebleau (Florida) | 2,255.14 mi (3,629.30 km) |
| National City to Four Corners (Oregon) | 903.82 mi (1,454.56 km) |
| National City to Four Corners (Texas) | 1,281.96 mi (2,063.12 km) |
| National City to Four Square Mile (Colorado) | 834.64 mi (1,343.22 km) |
| National City to Fox Crossing (Wisconsin) | 1,730.19 mi (2,784.48 km) |
| National City to Fox Lake (Illinois) | 1,710.76 mi (2,753.20 km) |
| National City to Framingham (Massachusetts) | 2,557.91 mi (4,116.56 km) |
