| Seattle to Carpentras | 5,341.79 mi (8,596.78 km) |
| Seattle to Carquefou | 4,976.57 mi (8,009.02 km) |
| Seattle to Carqueiranne | 5,425.39 mi (8,731.33 km) |
| Seattle to Carrieres-sous-Poissy | 4,982.24 mi (8,018.15 km) |
| Seattle to Carrieres-sur-Seine | 4,990.95 mi (8,032.16 km) |
| Seattle to Carros | 5,415.90 mi (8,716.04 km) |
| Seattle to Carvin | 4,919.44 mi (7,917.07 km) |
| Seattle to Castanet-Tolosan | 5,272.95 mi (8,486.00 km) |
| Seattle to Castelginest | 5,261.02 mi (8,466.79 km) |
| Seattle to Castelnau-le-Lez | 5,334.27 mi (8,584.68 km) |
| Seattle to Castelnaudary | 5,297.26 mi (8,525.12 km) |
| Seattle to Castelsarrasin | 5,232.11 mi (8,420.26 km) |
| Seattle to Castres | 5,289.76 mi (8,513.05 km) |
| Seattle to Caudebec-les-Elbeuf | 4,936.54 mi (7,944.59 km) |
| Seattle to Caudry | 4,951.76 mi (7,969.09 km) |
