| SeaTac to Conyers (Georgia) | 2,195.91 mi (3,533.98 km) |
| SeaTac to Cookeville (Tennessee) | 2,026.01 mi (3,260.54 km) |
| SeaTac to Coolidge (Arizona) | 1,149.92 mi (1,850.61 km) |
| SeaTac to Coon Rapids (Minnesota) | 1,384.28 mi (2,227.78 km) |
| SeaTac to Cooper City (Florida) | 2,708.68 mi (4,359.19 km) |
| SeaTac to Coos Bay (Oregon) | 296.13 mi (476.57 km) |
| SeaTac to Copiague (New York) | 2,431.53 mi (3,913.17 km) |
| SeaTac to Coppell (Texas) | 1,656.04 mi (2,665.14 km) |
| SeaTac to Copperas Cove (Texas) | 1,711.10 mi (2,753.74 km) |
| SeaTac to Coral Gables (Florida) | 2,725.89 mi (4,386.90 km) |
| SeaTac to Coral Springs (Florida) | 2,699.10 mi (4,343.79 km) |
| SeaTac to Coral Terrace (Florida) | 2,722.34 mi (4,381.19 km) |
| SeaTac to Coralville (Iowa) | 1,551.30 mi (2,496.57 km) |
| SeaTac to Coram (New York) | 2,442.66 mi (3,931.08 km) |
| SeaTac to Corcoran (California) | 797.36 mi (1,283.22 km) |
