| SeaTac to Caltagirone | 6,007.79 mi (9,668.61 km) |
| SeaTac to Caltanissetta | 5,980.83 mi (9,625.21 km) |
| SeaTac to Calvisano | 5,413.02 mi (8,711.41 km) |
| SeaTac to Calvizzano | 5,775.66 mi (9,295.02 km) |
| SeaTac to Camaiore | 5,496.18 mi (8,845.24 km) |
| SeaTac to Cameri | 5,361.68 mi (8,628.79 km) |
| SeaTac to Camisano Vicentino | 5,436.36 mi (8,748.97 km) |
| SeaTac to Campagna | 5,812.21 mi (9,353.84 km) |
| SeaTac to Campagnano di Roma | 5,656.34 mi (9,103.00 km) |
| SeaTac to Campi Bisenzio | 5,524.00 mi (8,890.01 km) |
| SeaTac to Campi Salentina | 5,897.13 mi (9,490.51 km) |
| SeaTac to Campiglia Marittima | 5,555.89 mi (8,941.33 km) |
| SeaTac to Campobasso | 5,746.64 mi (9,248.33 km) |
| SeaTac to Campobello di Licata | 5,991.75 mi (9,642.79 km) |
| SeaTac to Campobello di Mazara | 5,938.10 mi (9,556.45 km) |
