| Costa Mesa to Kinston (North Carolina) | 2,283.52 mi (3,674.96 km) |
| Costa Mesa to Kirkland (Washington) | 994.73 mi (1,600.86 km) |
| Costa Mesa to Kirksville (Missouri) | 1,464.47 mi (2,356.84 km) |
| Costa Mesa to Kirkwood (Missouri) | 1,565.23 mi (2,519.00 km) |
| Costa Mesa to Kiryas Joel (New York) | 2,429.08 mi (3,909.23 km) |
| Costa Mesa to Kissimmee (Florida) | 2,181.88 mi (3,511.40 km) |
| Costa Mesa to Klamath Falls (Oregon) | 627.10 mi (1,009.22 km) |
| Costa Mesa to Knightdale (North Carolina) | 2,228.04 mi (3,585.68 km) |
| Costa Mesa to Knik-Fairview (Alaska) | 2,377.82 mi (3,826.74 km) |
| Costa Mesa to Knoxville (Tennessee) | 1,923.42 mi (3,095.44 km) |
| Costa Mesa to Kokomo (Indiana) | 1,803.54 mi (2,902.52 km) |
| Costa Mesa to Kuna (Idaho) | 683.50 mi (1,099.99 km) |
| Costa Mesa to Kyle (Texas) | 1,200.74 mi (1,932.40 km) |
| Costa Mesa to La Cañada Flintridge (California) | 40.96 mi (65.92 km) |
| Costa Mesa to La Crescenta-Montrose (California) | 43.21 mi (69.53 km) |
