| Portimao to Chickasha (Oklahoma) | 4,788.63 mi (7,706.56 km) |
| Portimao to Chico (California) | 5,646.69 mi (9,087.46 km) |
| Portimao to Chicopee (Massachusetts) | 3,343.62 mi (5,381.03 km) |
| Portimao to Chillicothe (Ohio) | 3,922.75 mi (6,313.05 km) |
| Portimao to Chillum (Maryland) | 3,634.06 mi (5,848.46 km) |
| Portimao to Chino (California) | 5,738.78 mi (9,235.68 km) |
| Portimao to Chino Hills (California) | 5,742.87 mi (9,242.25 km) |
| Portimao to Chino Valley (Arizona) | 5,473.09 mi (8,808.09 km) |
| Portimao to Chippewa Falls (Wisconsin) | 4,160.94 mi (6,696.39 km) |
| Portimao to Choctaw (Oklahoma) | 4,740.04 mi (7,628.36 km) |
| Portimao to Chowchilla (California) | 5,705.42 mi (9,181.99 km) |
| Portimao to Christiansburg (Virginia) | 3,854.33 mi (6,202.95 km) |
| Portimao to Chubbuck (Idaho) | 5,133.21 mi (8,261.10 km) |
| Portimao to Chula Vista (California) | 5,771.10 mi (9,287.70 km) |
| Portimao to Cibolo (Texas) | 5,004.63 mi (8,054.17 km) |
