| Sintra to Clermont (Florida) | 4,113.09 mi (6,619.37 km) |
| Sintra to Cleveland (Mississippi) | 4,389.91 mi (7,064.87 km) |
| Sintra to Cleveland (Ohio) | 3,707.41 mi (5,966.50 km) |
| Sintra to Cleveland (Tennessee) | 4,050.29 mi (6,518.32 km) |
| Sintra to Cleveland Heights (Ohio) | 3,700.90 mi (5,956.02 km) |
| Sintra to Cliffside Park (New Jersey) | 3,351.20 mi (5,393.24 km) |
| Sintra to Clifton (Colorado) | 5,013.94 mi (8,069.16 km) |
| Sintra to Clifton (New Jersey) | 3,358.57 mi (5,405.10 km) |
| Sintra to Clinton (Iowa) | 4,098.37 mi (6,595.69 km) |
| Sintra to Clinton (Maryland) | 3,547.66 mi (5,709.40 km) |
| Sintra to Clinton (Mississippi) | 4,419.84 mi (7,113.04 km) |
| Sintra to Clinton (Utah) | 5,080.80 mi (8,176.76 km) |
| Sintra to Clive (Iowa) | 4,268.44 mi (6,869.38 km) |
| Sintra to Cloquet (Minnesota) | 4,052.01 mi (6,521.08 km) |
| Sintra to Cloverleaf (Texas) | 4,756.22 mi (7,654.40 km) |
