Port name - airport
| Type | Name | Country |
| Airport | CARLSBAD (CNM) | USA |
| Airport | CASPER (CPR) | USA |
| Seaport | COLUMBUS | USA |
| Seaport | HEBRON | USA |
| Airport | CEDAR CITY (CDC) | USA |
| Airport | CEDAR RAPIDS (CID) | USA |
| Airport | CHADRON (CDR) | USA |
| Seaport | WARREN | USA |
| Airport | CHAMPAIGN (CMI) | USA |
| Airport | CHARLESTON (CHS) | USA |
| Airport | CHARLESTON (CRW) | USA |
| Airport | CHARLOTTE (CLT) | USA |
| Airport | CHARLOTTESVILLE (CHO) | USA |
| Airport | CHATTANOOGA (CHA) | USA |
| Seaport | OREGON | USA |
| Airport | CHEYENNE (CYS) | USA |
| Seaport | PORTLAND | USA |
| Airport | CHICAGO (CGX) | USA |
| Seaport | PENNSYLVANIA | USA |
| Airport | CHICAGO (MDW) | USA |