| Sligo to Cloverly (Maryland) | 3,269.03 mi (5,260.99 km) |
| Sligo to Clovis (California) | 4,939.26 mi (7,948.97 km) |
| Sligo to Clovis (New Mexico) | 4,504.65 mi (7,249.53 km) |
| Sligo to Clute (Texas) | 4,496.61 mi (7,236.59 km) |
| Sligo to Coachella (California) | 5,000.29 mi (8,047.18 km) |
| Sligo to Coalinga (California) | 4,998.50 mi (8,044.30 km) |
| Sligo to Coamo (Puerto Rico) | 3,926.88 mi (6,319.71 km) |
| Sligo to Coatesville (Pennsylvania) | 3,181.72 mi (5,120.48 km) |
| Sligo to Cockeysville (Maryland) | 3,237.01 mi (5,209.47 km) |
| Sligo to Cocoa (Florida) | 3,949.76 mi (6,356.53 km) |
| Sligo to Cocoa Beach (Florida) | 3,946.68 mi (6,351.56 km) |
| Sligo to Coconut Creek (Florida) | 4,035.80 mi (6,494.99 km) |
| Sligo to Coeur d'Alene (Idaho) | 4,250.14 mi (6,839.95 km) |
| Sligo to Cohoes (New York) | 2,973.62 mi (4,785.58 km) |
| Sligo to Cold Springs (Nevada) | 4,786.88 mi (7,703.74 km) |
