| Sammamish to Cockermouth | 4,523.24 mi (7,279.45 km) |
| Sammamish to Colchester | 4,782.72 mi (7,697.04 km) |
| Sammamish to Coleford | 4,695.11 mi (7,556.04 km) |
| Sammamish to Colne | 4,596.67 mi (7,397.62 km) |
| Sammamish to Colwyn Bay | 4,586.41 mi (7,381.11 km) |
| Sammamish to Congleton | 4,632.54 mi (7,455.36 km) |
| Sammamish to Conisbrough | 4,641.38 mi (7,469.58 km) |
| Sammamish to Connahs Quay | 4,607.35 mi (7,414.82 km) |
| Sammamish to Consett | 4,552.62 mi (7,326.74 km) |
| Sammamish to Conwy | 4,583.45 mi (7,376.35 km) |
| Sammamish to Cookstown | 4,434.21 mi (7,136.17 km) |
| Sammamish to Corby | 4,708.53 mi (7,577.65 km) |
| Sammamish to Corfe Mullen | 4,766.20 mi (7,670.46 km) |
| Sammamish to Corsham | 4,725.92 mi (7,605.63 km) |
| Sammamish to Coseley | 4,668.80 mi (7,513.71 km) |
