| SeaTac to Carpentras | 5,350.98 mi (8,611.58 km) |
| SeaTac to Carquefou | 4,985.49 mi (8,023.37 km) |
| SeaTac to Carqueiranne | 5,434.60 mi (8,746.15 km) |
| SeaTac to Carrieres-sous-Poissy | 4,991.59 mi (8,033.19 km) |
| SeaTac to Carrieres-sur-Seine | 5,000.32 mi (8,047.23 km) |
| SeaTac to Carros | 5,425.26 mi (8,731.11 km) |
| SeaTac to Carvin | 4,928.98 mi (7,932.43 km) |
| SeaTac to Castanet-Tolosan | 5,281.78 mi (8,500.21 km) |
| SeaTac to Castelginest | 5,269.86 mi (8,481.03 km) |
| SeaTac to Castelnau-le-Lez | 5,343.33 mi (8,599.26 km) |
| SeaTac to Castelnaudary | 5,306.12 mi (8,539.37 km) |
| SeaTac to Castelsarrasin | 5,240.95 mi (8,434.50 km) |
| SeaTac to Castres | 5,298.67 mi (8,527.39 km) |
| SeaTac to Caudebec-les-Elbeuf | 4,945.84 mi (7,959.56 km) |
| SeaTac to Caudry | 4,961.31 mi (7,984.46 km) |
