| National City to Keene (New Hampshire) | 2,514.37 mi (4,046.49 km) |
| National City to Keizer (Oregon) | 909.49 mi (1,463.68 km) |
| National City to Keller (Texas) | 1,152.60 mi (1,854.93 km) |
| National City to Kelso (Washington) | 979.26 mi (1,575.97 km) |
| National City to Kemp Mill (Maryland) | 2,268.36 mi (3,650.57 km) |
| National City to Ken Caryl (Colorado) | 820.62 mi (1,320.66 km) |
| National City to Kendale Lakes (Florida) | 2,253.14 mi (3,626.08 km) |
| National City to Kendall (Florida) | 2,257.13 mi (3,632.50 km) |
| National City to Kendall Park (New Jersey) | 2,397.09 mi (3,857.74 km) |
| National City to Kendall West (Florida) | 2,251.38 mi (3,623.25 km) |
| National City to Kenmore (New York) | 2,182.88 mi (3,513.01 km) |
| National City to Kenmore (Washington) | 1,076.57 mi (1,732.57 km) |
| National City to Kenner (Louisiana) | 1,590.45 mi (2,559.59 km) |
| National City to Kennesaw (Georgia) | 1,869.24 mi (3,008.26 km) |
| National City to Kennett (Missouri) | 1,555.63 mi (2,503.55 km) |
