| SeaTac to Campo de Criptana | 5,369.71 mi (8,641.72 km) |
| SeaTac to Campos del Puerto | 5,558.72 mi (8,945.89 km) |
| SeaTac to Canals | 5,474.76 mi (8,810.78 km) |
| SeaTac to Candelaria | 5,475.68 mi (8,812.25 km) |
| SeaTac to Canet de Mar | 5,422.42 mi (8,726.55 km) |
| SeaTac to Cangas | 5,030.00 mi (8,095.00 km) |
| SeaTac to Cangas de Narcea | 5,055.18 mi (8,135.52 km) |
| SeaTac to Canovellas | 5,412.08 mi (8,709.90 km) |
| SeaTac to Canteras | 5,535.68 mi (8,908.82 km) |
| SeaTac to Cantillana | 5,378.75 mi (8,656.27 km) |
| SeaTac to Capdepera | 5,555.58 mi (8,940.84 km) |
| SeaTac to Carballo | 4,983.24 mi (8,019.76 km) |
| SeaTac to Carcagente | 5,470.01 mi (8,803.14 km) |
| SeaTac to Cardedeu | 5,413.06 mi (8,711.48 km) |
| SeaTac to Carlet | 5,461.91 mi (8,790.10 km) |
