| Security-Widefield to Cloverleaf (Texas) | 823.70 mi (1,325.62 km) |
| Security-Widefield to Cloverly (Maryland) | 1,484.07 mi (2,388.37 km) |
| Security-Widefield to Clovis (California) | 827.08 mi (1,331.05 km) |
| Security-Widefield to Clovis (New Mexico) | 309.60 mi (498.25 km) |
| Security-Widefield to Clute (Texas) | 857.37 mi (1,379.80 km) |
| Security-Widefield to Coachella (California) | 725.83 mi (1,168.12 km) |
| Security-Widefield to Coalinga (California) | 873.87 mi (1,406.36 km) |
| Security-Widefield to Coamo (Puerto Rico) | 2,704.08 mi (4,351.80 km) |
| Security-Widefield to Coatesville (Pennsylvania) | 1,539.02 mi (2,476.82 km) |
| Security-Widefield to Cockeysville (Maryland) | 1,500.32 mi (2,414.54 km) |
| Security-Widefield to Cocoa (Florida) | 1,546.98 mi (2,489.63 km) |
| Security-Widefield to Cocoa Beach (Florida) | 1,555.96 mi (2,504.07 km) |
| Security-Widefield to Coconut Creek (Florida) | 1,660.63 mi (2,672.52 km) |
| Security-Widefield to Coeur d'Alene (Idaho) | 865.60 mi (1,393.06 km) |
| Security-Widefield to Cohoes (New York) | 1,636.83 mi (2,634.22 km) |
