Airlines
| Name | Country | ICAO | |
|---|---|---|---|
| Canadian Helicopters Flight Status | Canada | CDN | |
| Cape Air Flight Status | United States | KAP | |
| Cargo Ivoire Flight Status | United Kingdom | CRV | |
| Cathay Pacific Flight Status | Hong Kong | CPA | |
| Cebu Pacific Flight Status | Philippines | CEB | |
| Centennial Flight Centre Flight Status | United States | CNS | |
| Central Mountain Air Flight Status | Canada | GLR | |
| CHC Helicopter Flight Status | Canada | HMB | |
| China Southern Airlines Flight Status | China | CSN | |
| Chrono Aviation | Canada | MBK | |
| CommutAir Flight Status | United States | UCA | |
| Compass Airlines Flight Status | United States | CPZ | |
| Copa Airlines Flight Status | Colombia | CMP | |
| Corporate Flight Management Flight Status | United States | VTE | |
| Cougar Helicopters Flight Status | Canada | CHI |