| SeaTac to Cordele (Georgia) | 2,279.42 mi (3,668.37 km) |
| SeaTac to Corinth (Mississippi) | 1,936.72 mi (3,116.85 km) |
| SeaTac to Corinth (Texas) | 1,644.13 mi (2,645.97 km) |
| SeaTac to Cornelius (North Carolina) | 2,266.71 mi (3,647.91 km) |
| SeaTac to Cornelius (Oregon) | 137.78 mi (221.73 km) |
| SeaTac to Corning (New York) | 2,216.12 mi (3,566.51 km) |
| SeaTac to Corona (California) | 970.24 mi (1,561.46 km) |
| SeaTac to Coronado (California) | 1,056.09 mi (1,699.60 km) |
| SeaTac to Corpus Christi (Texas) | 1,912.01 mi (3,077.08 km) |
| SeaTac to Corsicana (Texas) | 1,720.73 mi (2,769.24 km) |
| SeaTac to Cortland (New York) | 2,243.48 mi (3,610.53 km) |
| SeaTac to Corvallis (Oregon) | 204.10 mi (328.46 km) |
| SeaTac to Coshocton (Ohio) | 2,050.81 mi (3,300.45 km) |
| SeaTac to Costa Mesa (California) | 978.96 mi (1,575.48 km) |
| SeaTac to Coto de Caza (California) | 987.84 mi (1,589.78 km) |
