| Security-Widefield to Conyers (Georgia) | 1,204.20 mi (1,937.97 km) |
| Security-Widefield to Cookeville (Tennessee) | 1,066.52 mi (1,716.40 km) |
| Security-Widefield to Coolidge (Arizona) | 553.58 mi (890.89 km) |
| Security-Widefield to Coon Rapids (Minnesota) | 734.00 mi (1,181.26 km) |
| Security-Widefield to Cooper City (Florida) | 1,665.48 mi (2,680.33 km) |
| Security-Widefield to Coos Bay (Oregon) | 1,063.06 mi (1,710.83 km) |
| Security-Widefield to Copiague (New York) | 1,661.33 mi (2,673.65 km) |
| Security-Widefield to Coppell (Texas) | 588.51 mi (947.11 km) |
| Security-Widefield to Copperas Cove (Texas) | 652.43 mi (1,049.99 km) |
| Security-Widefield to Coral Gables (Florida) | 1,680.82 mi (2,705.01 km) |
| Security-Widefield to Coral Springs (Florida) | 1,657.37 mi (2,667.27 km) |
| Security-Widefield to Coral Terrace (Florida) | 1,677.35 mi (2,699.44 km) |
| Security-Widefield to Coralville (Iowa) | 720.57 mi (1,159.64 km) |
| Security-Widefield to Coram (New York) | 1,680.03 mi (2,703.75 km) |
| Security-Widefield to Corcoran (California) | 834.28 mi (1,342.65 km) |
