| Sintra to Commerce City (Colorado) | 4,824.97 mi (7,765.04 km) |
| Sintra to Compton (California) | 5,660.28 mi (9,109.33 km) |
| Sintra to Comstock Park (Michigan) | 3,852.53 mi (6,200.06 km) |
| Sintra to Concord (California) | 5,625.14 mi (9,052.79 km) |
| Sintra to Concord (Missouri) | 4,209.82 mi (6,775.05 km) |
| Sintra to Concord (New Hampshire) | 3,180.49 mi (5,118.51 km) |
| Sintra to Concord (North Carolina) | 3,831.13 mi (6,165.60 km) |
| Sintra to Conneaut (Ohio) | 3,642.50 mi (5,862.03 km) |
| Sintra to Connersville (Indiana) | 3,924.52 mi (6,315.91 km) |
| Sintra to Conroe (Texas) | 4,751.25 mi (7,646.40 km) |
| Sintra to Converse (Texas) | 4,922.99 mi (7,922.78 km) |
| Sintra to Conway (Arkansas) | 4,428.41 mi (7,126.83 km) |
| Sintra to Conway (Florida) | 4,093.97 mi (6,588.61 km) |
| Sintra to Conway (South Carolina) | 3,798.12 mi (6,112.48 km) |
| Sintra to Conyers (Georgia) | 4,055.86 mi (6,527.28 km) |
