| Leek to Cloverly (Maryland) | 3,544.62 mi (5,704.52 km) |
| Leek to Clovis (California) | 5,192.20 mi (8,356.04 km) |
| Leek to Clovis (New Mexico) | 4,775.89 mi (7,686.05 km) |
| Leek to Clute (Texas) | 4,772.58 mi (7,680.73 km) |
| Leek to Coachella (California) | 5,260.86 mi (8,466.54 km) |
| Leek to Coalinga (California) | 5,251.35 mi (8,451.23 km) |
| Leek to Coamo (Puerto Rico) | 4,167.16 mi (6,706.40 km) |
| Leek to Coatesville (Pennsylvania) | 3,457.33 mi (5,564.03 km) |
| Leek to Cockeysville (Maryland) | 3,512.64 mi (5,653.04 km) |
| Leek to Cocoa (Florida) | 4,221.71 mi (6,794.18 km) |
| Leek to Cocoa Beach (Florida) | 4,218.50 mi (6,789.02 km) |
| Leek to Coconut Creek (Florida) | 4,305.86 mi (6,929.61 km) |
| Leek to Coeur d'Alene (Idaho) | 4,492.41 mi (7,229.84 km) |
| Leek to Cohoes (New York) | 3,249.55 mi (5,229.65 km) |
| Leek to Cold Springs (Nevada) | 5,036.02 mi (8,104.69 km) |
