| Flughafenkürzel |
Stadt / Flughafen |
| BFV |
Clinton, OK - Clinton Municipal Airport |
| CSM |
Clinton, OK - Clinton-Sherman Airport |
| CLI |
Clintonville, WI - Clintonville Municipal Airport |
| CVS |
Clovis, NM - Cannon Air Force Base |
| CVN |
Clovis, NM - Clovis Municipal Airport |
| CLG |
Coalinga, CA - Coalinga Municipal Airport |
| CTH |
Coatesville, PA - Chester County G. O. Carlson Airport |
| XMR |
Cocoa Beach, FL - Cape Canaveral Air Force Station Skid Strip |
| COF |
Cocoa Beach, FL - Patrick Air Force Base |
| COI |
Cocoa, FL - Merritt Island Airport |
| COD |
Cody, WY - Yellowstone Regional Airport |
| COE |
Coeur d'Alene, ID - Coeur d'Alene Air Terminal |
| CFA |
Coffee Point, AK |
| CFV |
Coffeyville, KS - Coffeyville Municipal Airport |
| KCC |
Coffman Cove, AK - Coffman Cove Seaplane Base |
| CBK |
Colby, KS - Shaltz Field |
| CDB |
Cold Bay, AK - Cold Bay Airport |
| CXF |
Coldfoot, AK - Coldfoot Airport |
| COM |
Coleman, TX - Coleman Municipal Airport |
| CGS |
College Park, MD - College Park Airport |
| CLL |
College Station, TX - Easterwood Field |
| VCW |
Colonial Williamsburg, VA |
| KCR |
Colorado Creek, AK - Colorado Creek Airport |
| COS |
Colorado Springs, CO - City of Colorado Springs Municipal Airport |
| AFF |
Colorado Springs, CO - U.S. Air Force Academy Airstrip |
| FCS |
Colorado Springs/Fort Carson, CO - Butts Army Air Field |
| RTO |
Colton, CA |
| COA |
Columbia, CA - Columbia Airport |
| COU |
Columbia, MO - Columbia Regional Airport |
| CAE |
Columbia, SC - Columbia Metropolitan Airport |
| CUB |
Columbia, SC - Columbia Owens Downtown Airport |
| MMT |
Columbia, SC - McEntire Air National Guard Base |
| MRC |
Columbia/Mount Pleasant, TN - Maury County Airport |
| CSG |
Columbus, GA - Columbus Metropolitan Airport |
| MKF |
Columbus, GA - McKenna Army Air Field |
| CLU |
Columbus, IN - Columbus Municipal Airport |
| CBM |
Columbus, MS - Columbus Air Force Base |
| UBS |
Columbus, MS - Columbus-Lowndes County Airport |
| OLU |
Columbus, NE - Columbus Municipal Airport |
| CUS |
Columbus, NM - Columbus Municipal Airport |
| OSU |
Columbus, OH - Ohio State University Airport |
| CMH |
Columbus, OH - Port Columbus International Airport |
| LCK |
Columbus, OH - Rickenbacker International Airport |
| GTR |
Columbus/West Point/Starkville, MS - Golden Triangle Regional Airport |
| KCO |
Colville River, AK |
| CPM |
Compton, CA - Compton Airport |
| CCR |
Concord, CA - Buchanan Field |
| CON |
Concord, NH - Concord Municipal Airport |
| CNK |
Concordia, KS - Blosser Municipal Airport |
| WKC |
Connellsville, PA - Connellsville Airport |