| San Gregorio di Catania to Cloverly (Maryland) | 4,752.65 mi (7,648.64 km) |
| San Gregorio di Catania to Clovis (California) | 6,541.83 mi (10,528.06 km) |
| San Gregorio di Catania to Clovis (New Mexico) | 6,080.74 mi (9,786.00 km) |
| San Gregorio di Catania to Clute (Texas) | 6,008.75 mi (9,670.15 km) |
| San Gregorio di Catania to Coachella (California) | 6,601.96 mi (10,624.82 km) |
| San Gregorio di Catania to Coalinga (California) | 6,601.04 mi (10,623.35 km) |
| San Gregorio di Catania to Coamo (Puerto Rico) | 5,008.84 mi (8,060.95 km) |
| San Gregorio di Catania to Coatesville (Pennsylvania) | 4,667.39 mi (7,511.43 km) |
| San Gregorio di Catania to Cockeysville (Maryland) | 4,722.23 mi (7,599.70 km) |
| San Gregorio di Catania to Cocoa (Florida) | 5,347.11 mi (8,605.34 km) |
| San Gregorio di Catania to Cocoa Beach (Florida) | 5,342.23 mi (8,597.49 km) |
| San Gregorio di Catania to Coconut Creek (Florida) | 5,403.95 mi (8,696.81 km) |
| San Gregorio di Catania to Coeur d'Alene (Idaho) | 5,843.08 mi (9,403.53 km) |
| San Gregorio di Catania to Cohoes (New York) | 4,476.40 mi (7,204.07 km) |
| San Gregorio di Catania to Cold Springs (Nevada) | 6,387.10 mi (10,279.05 km) |
