| Sintra to Culpeper (Virginia) | 3,609.56 mi (5,809.02 km) |
| Sintra to Culver City (California) | 5,662.30 mi (9,112.60 km) |
| Sintra to Cumberland (Maryland) | 3,614.94 mi (5,817.69 km) |
| Sintra to Cupertino (California) | 5,658.02 mi (9,105.70 km) |
| Sintra to Cutler Bay (Florida) | 4,145.65 mi (6,671.78 km) |
| Sintra to Cutlerville (Michigan) | 3,857.99 mi (6,208.83 km) |
| Sintra to Cuyahoga Falls (Ohio) | 3,708.17 mi (5,967.72 km) |
| Sintra to Cypress (California) | 5,655.70 mi (9,101.96 km) |
| Sintra to Cypress Gardens (Florida) | 4,129.87 mi (6,646.38 km) |
| Sintra to Cypress Lake (Florida) | 4,193.46 mi (6,748.72 km) |
| Sintra to D'Iberville (Mississippi) | 4,414.76 mi (7,104.87 km) |
| Sintra to Dakota Ridge (Colorado) | 4,847.30 mi (7,800.98 km) |
| Sintra to Dale City (Virginia) | 3,572.25 mi (5,748.99 km) |
| Sintra to Dallas (Georgia) | 4,090.24 mi (6,582.60 km) |
| Sintra to Dallas (Oregon) | 5,345.65 mi (8,602.99 km) |
