| Runcorn to Castle Rock (Colorado) | 4,537.17 mi (7,301.87 km) |
| Runcorn to Castro Valley (California) | 5,179.98 mi (8,336.37 km) |
| Runcorn to Catalina Foothills (Arizona) | 5,129.84 mi (8,255.68 km) |
| Runcorn to Cataño (Puerto Rico) | 4,112.46 mi (6,618.37 km) |
| Runcorn to Cathedral City (California) | 5,229.90 mi (8,416.71 km) |
| Runcorn to Catonsville (Maryland) | 3,494.40 mi (5,623.69 km) |
| Runcorn to Cave Spring (Virginia) | 3,720.05 mi (5,986.84 km) |
| Runcorn to Cayce (South Carolina) | 3,920.91 mi (6,310.10 km) |
| Runcorn to Cayey (Puerto Rico) | 4,130.74 mi (6,647.78 km) |
| Runcorn to Cedar City (Utah) | 4,903.88 mi (7,892.03 km) |
| Runcorn to Cedar Falls (Iowa) | 3,939.83 mi (6,340.54 km) |
| Runcorn to Cedar Hill (Texas) | 4,611.23 mi (7,421.07 km) |
| Runcorn to Cedar Lake (Indiana) | 3,809.97 mi (6,131.55 km) |
| Runcorn to Cedar Mill (Oregon) | 4,747.78 mi (7,640.81 km) |
| Runcorn to Cedar Park (Texas) | 4,753.38 mi (7,649.83 km) |
