| Sligo to Carson (California) | 5,062.27 mi (8,146.94 km) |
| Sligo to Carson City (Nevada) | 4,810.22 mi (7,741.30 km) |
| Sligo to Carteret (New Jersey) | 3,091.29 mi (4,974.95 km) |
| Sligo to Cartersville (Georgia) | 3,816.65 mi (6,142.30 km) |
| Sligo to Carthage (Missouri) | 4,035.02 mi (6,493.73 km) |
| Sligo to Cary (Illinois) | 3,559.64 mi (5,728.69 km) |
| Sligo to Cary (North Carolina) | 3,499.58 mi (5,632.03 km) |
| Sligo to Casa de Oro-Mount Helix (California) | 5,080.12 mi (8,175.66 km) |
| Sligo to Casa Grande (Arizona) | 4,893.85 mi (7,875.89 km) |
| Sligo to Casas Adobes (Arizona) | 4,898.65 mi (7,883.61 km) |
| Sligo to Cascades (Virginia) | 3,287.19 mi (5,290.23 km) |
| Sligo to Casper (Wyoming) | 4,174.90 mi (6,718.86 km) |
| Sligo to Casselberry (Florida) | 3,957.55 mi (6,369.06 km) |
| Sligo to Castaic (California) | 5,038.13 mi (8,108.09 km) |
| Sligo to Castle Pines (Colorado) | 4,300.39 mi (6,920.82 km) |
