| SeaTac to Caldicot | 4,718.01 mi (7,592.90 km) |
| SeaTac to Calne | 4,746.38 mi (7,638.55 km) |
| SeaTac to Cam | 4,722.54 mi (7,600.19 km) |
| SeaTac to Camberley | 4,785.80 mi (7,702.00 km) |
| SeaTac to Camborne | 4,719.84 mi (7,595.85 km) |
| SeaTac to Cambridge | 4,760.95 mi (7,662.01 km) |
| SeaTac to Cambuslang | 4,457.73 mi (7,174.02 km) |
| SeaTac to Canford Cliffs | 4,788.20 mi (7,705.87 km) |
| SeaTac to Cannock | 4,678.48 mi (7,529.29 km) |
| SeaTac to Canterbury | 4,836.71 mi (7,783.93 km) |
| SeaTac to Carlisle | 4,537.65 mi (7,302.64 km) |
| SeaTac to Carlton Colville | 4,787.48 mi (7,704.70 km) |
| SeaTac to Carluke | 4,470.68 mi (7,194.86 km) |
| SeaTac to Carnoustie | 4,458.95 mi (7,175.98 km) |
| SeaTac to Carshalton | 4,799.37 mi (7,723.83 km) |
