| SeaTac to Kennewick (Washington) | 171.02 mi (275.23 km) |
| SeaTac to Kenosha (Wisconsin) | 1,699.84 mi (2,735.62 km) |
| SeaTac to Kent (Ohio) | 2,045.78 mi (3,292.37 km) |
| SeaTac to Kent (Washington) | 5.56 mi (8.95 km) |
| SeaTac to Kentwood (Michigan) | 1,798.39 mi (2,894.23 km) |
| SeaTac to Kerman (California) | 749.39 mi (1,206.02 km) |
| SeaTac to Kernersville (North Carolina) | 2,279.37 mi (3,668.30 km) |
| SeaTac to Kerrville (Texas) | 1,720.77 mi (2,769.31 km) |
| SeaTac to Kettering (Maryland) | 2,332.66 mi (3,754.05 km) |
| SeaTac to Kettering (Ohio) | 1,961.67 mi (3,157.01 km) |
| SeaTac to Kewanee (Illinois) | 1,642.97 mi (2,644.11 km) |
| SeaTac to Key Biscayne (Florida) | 2,731.23 mi (4,395.49 km) |
| SeaTac to Key Largo (Florida) | 2,747.99 mi (4,422.47 km) |
| SeaTac to Key West (Florida) | 2,715.62 mi (4,370.37 km) |
| SeaTac to Keystone (Florida) | 2,506.27 mi (4,033.45 km) |
