| Abbreviation | Definition |
|---|---|
| CYO | Pickaway County Memorial Airport, Circleville, Ohio USA |
| CYOC | Old Crow Airport, Canada |
| CYOD | Cold Lake Regional Airport, Canada |
| CYOJ | High Level Airport, Canada |
| CYOW | Ottawa MacDonald-Cartier/Uplan, Canada |
| CYP | Calbayog, Philippines |
| CYPA | Prince Albert Airport, Canada |
| CYPE | Peace River Airport, Canada |
| CYPF | Esquimalt Dockyard, Canada |
| CYPG | Portage-La-Prairie Southport A, Canada |
| CYPH | Port Hardy Inukjuak Airport, Canada |
| CYPK | Pitt Meadows Airport, Canada |
| CYPL | Pickle Lake Airport, Canada |
| CYPN | Port Menier Airport, Canada |
| CYPQ | Peterborough Airport, Canada |
| CYPR | Prince Rupert Airport, Canada |
| CYPY | Fort Chipewyan Airport, Canada |
| CYQA | Muskoka Airport, Canada |
| CYQB | Quebec Airport, Canada |
| CYQF | Red Deer Industrial Airport, Canada |