| Boadilla del Monte to Castle Rock (Colorado) | 5,015.77 mi (8,072.10 km) |
| Boadilla del Monte to Castro Valley (California) | 5,774.40 mi (9,292.99 km) |
| Boadilla del Monte to Catalina Foothills (Arizona) | 5,589.67 mi (8,995.71 km) |
| Boadilla del Monte to Cataño (Puerto Rico) | 3,954.79 mi (6,364.61 km) |
| Boadilla del Monte to Cathedral City (California) | 5,750.24 mi (9,254.12 km) |
| Boadilla del Monte to Catonsville (Maryland) | 3,749.89 mi (6,034.87 km) |
| Boadilla del Monte to Cave Spring (Virginia) | 3,972.10 mi (6,392.48 km) |
| Boadilla del Monte to Cayce (South Carolina) | 4,135.26 mi (6,655.05 km) |
| Boadilla del Monte to Cayey (Puerto Rico) | 3,969.13 mi (6,387.70 km) |
| Boadilla del Monte to Cedar City (Utah) | 5,429.90 mi (8,738.58 km) |
| Boadilla del Monte to Cedar Falls (Iowa) | 4,361.67 mi (7,019.44 km) |
| Boadilla del Monte to Cedar Hill (Texas) | 4,951.72 mi (7,969.03 km) |
| Boadilla del Monte to Cedar Lake (Indiana) | 4,179.94 mi (6,726.97 km) |
| Boadilla del Monte to Cedar Mill (Oregon) | 5,402.52 mi (8,694.52 km) |
| Boadilla del Monte to Cedar Park (Texas) | 5,078.57 mi (8,173.17 km) |
