| Quarteira to Carson (California) | 5,792.76 mi (9,322.55 km) |
| Quarteira to Carson City (Nevada) | 5,612.95 mi (9,033.17 km) |
| Quarteira to Carteret (New Jersey) | 3,482.39 mi (5,604.36 km) |
| Quarteira to Cartersville (Georgia) | 4,189.31 mi (6,742.05 km) |
| Quarteira to Carthage (Missouri) | 4,563.55 mi (7,344.32 km) |
| Quarteira to Cary (Illinois) | 4,117.51 mi (6,626.49 km) |
| Quarteira to Cary (North Carolina) | 3,835.61 mi (6,172.82 km) |
| Quarteira to Casa de Oro-Mount Helix (California) | 5,785.03 mi (9,310.11 km) |
| Quarteira to Casa Grande (Arizona) | 5,545.02 mi (8,923.84 km) |
| Quarteira to Casas Adobes (Arizona) | 5,534.58 mi (8,907.05 km) |
| Quarteira to Cascades (Virginia) | 3,676.28 mi (5,916.40 km) |
| Quarteira to Casper (Wyoming) | 4,902.77 mi (7,890.25 km) |
| Quarteira to Casselberry (Florida) | 4,185.42 mi (6,735.79 km) |
| Quarteira to Castaic (California) | 5,779.61 mi (9,301.39 km) |
| Quarteira to Castle Pines (Colorado) | 4,968.48 mi (7,996.00 km) |
