| Penafiel to Cloverly (Maryland) | 3,533.30 mi (5,686.29 km) |
| Penafiel to Clovis (California) | 5,521.42 mi (8,885.87 km) |
| Penafiel to Clovis (New Mexico) | 4,931.22 mi (7,936.03 km) |
| Penafiel to Clute (Texas) | 4,791.18 mi (7,710.66 km) |
| Penafiel to Coachella (California) | 5,528.27 mi (8,896.89 km) |
| Penafiel to Coalinga (California) | 5,580.09 mi (8,980.29 km) |
| Penafiel to Coamo (Puerto Rico) | 3,756.52 mi (6,045.53 km) |
| Penafiel to Coatesville (Pennsylvania) | 3,450.56 mi (5,553.14 km) |
| Penafiel to Cockeysville (Maryland) | 3,504.28 mi (5,639.60 km) |
| Penafiel to Cocoa (Florida) | 4,088.83 mi (6,580.34 km) |
| Penafiel to Cocoa Beach (Florida) | 4,083.59 mi (6,571.90 km) |
| Penafiel to Coconut Creek (Florida) | 4,139.87 mi (6,662.48 km) |
| Penafiel to Coeur d'Alene (Idaho) | 4,901.53 mi (7,888.26 km) |
| Penafiel to Cohoes (New York) | 3,274.06 mi (5,269.09 km) |
| Penafiel to Cold Springs (Nevada) | 5,394.00 mi (8,680.81 km) |
