| Sintra to Chickasha (Oklahoma) | 4,693.20 mi (7,552.98 km) |
| Sintra to Chico (California) | 5,533.46 mi (8,905.25 km) |
| Sintra to Chicopee (Massachusetts) | 3,251.38 mi (5,232.59 km) |
| Sintra to Chillicothe (Ohio) | 3,830.24 mi (6,164.18 km) |
| Sintra to Chillum (Maryland) | 3,545.49 mi (5,705.92 km) |
| Sintra to Chino (California) | 5,632.06 mi (9,063.92 km) |
| Sintra to Chino Hills (California) | 5,636.14 mi (9,070.48 km) |
| Sintra to Chino Valley (Arizona) | 5,368.87 mi (8,640.36 km) |
| Sintra to Chippewa Falls (Wisconsin) | 4,056.63 mi (6,528.52 km) |
| Sintra to Choctaw (Oklahoma) | 4,644.50 mi (7,474.59 km) |
| Sintra to Chowchilla (California) | 5,594.81 mi (9,003.97 km) |
| Sintra to Christiansburg (Virginia) | 3,766.93 mi (6,062.29 km) |
| Sintra to Chubbuck (Idaho) | 5,021.91 mi (8,081.99 km) |
| Sintra to Chula Vista (California) | 5,665.94 mi (9,118.45 km) |
| Sintra to Cibolo (Texas) | 4,916.06 mi (7,911.63 km) |
