| SeaTac to Celano | 5,688.11 mi (9,154.12 km) |
| SeaTac to Cento | 5,472.81 mi (8,807.63 km) |
| SeaTac to Cepagatti | 5,683.37 mi (9,146.50 km) |
| SeaTac to Ceprano | 5,719.72 mi (9,204.99 km) |
| SeaTac to Cercola | 5,781.77 mi (9,304.85 km) |
| SeaTac to Cerea | 5,443.24 mi (8,760.05 km) |
| SeaTac to Cerese | 5,440.79 mi (8,756.10 km) |
| SeaTac to Cerignola | 5,794.40 mi (9,325.18 km) |
| SeaTac to Cermenate | 5,360.81 mi (8,627.38 km) |
| SeaTac to Cernusco sul Naviglio | 5,377.90 mi (8,654.89 km) |
| SeaTac to Cerreto Guidi | 5,520.76 mi (8,884.80 km) |
| SeaTac to Cerro Maggiore | 5,363.36 mi (8,631.49 km) |
| SeaTac to Certaldo | 5,537.80 mi (8,912.23 km) |
| SeaTac to Cerveteri | 5,657.31 mi (9,104.56 km) |
| SeaTac to Cervia | 5,527.42 mi (8,895.53 km) |
