| Biddeford to Castle Rock (Colorado) | 1,791.63 mi (2,883.35 km) |
| Biddeford to Castro Valley (California) | 2,693.45 mi (4,334.68 km) |
| Biddeford to Catalina Foothills (Arizona) | 2,309.68 mi (3,717.07 km) |
| Biddeford to Cataño (Puerto Rico) | 1,747.50 mi (2,812.32 km) |
| Biddeford to Cathedral City (California) | 2,536.01 mi (4,081.32 km) |
| Biddeford to Catonsville (Maryland) | 436.51 mi (702.50 km) |
| Biddeford to Cave Spring (Virginia) | 661.95 mi (1,065.31 km) |
| Biddeford to Cayce (South Carolina) | 869.69 mi (1,399.63 km) |
| Biddeford to Cayey (Puerto Rico) | 1,769.44 mi (2,847.64 km) |
| Biddeford to Cedar City (Utah) | 2,248.21 mi (3,618.14 km) |
| Biddeford to Cedar Falls (Iowa) | 1,110.63 mi (1,787.38 km) |
| Biddeford to Cedar Hill (Texas) | 1,617.20 mi (2,602.64 km) |
| Biddeford to Cedar Lake (Indiana) | 876.94 mi (1,411.30 km) |
| Biddeford to Cedar Mill (Oregon) | 2,537.48 mi (4,083.68 km) |
| Biddeford to Cedar Park (Texas) | 1,743.72 mi (2,806.24 km) |
