| YTS | Timmins Municipal Airport, Timmins, Ontario, Canada |
| YTT | Tisdale, Saskatchewan, Canada |
| YTX | Telegraph Creek Aerodrome, Telegraph Creek, British Columbia, Canada |
| YTZ | Billy Bishop Toronto City Airport, Toronto, Ontario, Canada |
| YUA | Yuanmou, Mainland China |
| YUB | Tuktoyaktuk Airport, Tuktoyaktuk, NorthWest Territories, Canada |
| YUD | Umiujaq Airport, Umiujaq, Quebec, Canada |
| YUE | Yuendumu, Northern Territory, Australia |
| YUF | Pelly Bay Townsite Airport, Pelly Bay, NorthWest Territories, Canada |
| YUJ | Lady Franklin, NorthWest Territories, Canada |
| YUL | Dorval Airport, Montreal, Quebec, Canada |
| YUM | former code for Yuma Marine Corps Air Station/Yuma International Airport, Yuma, Arizona USA (now NYL) |
| YUN | Johnson Point, NorthWest Territories, Canada |
| YUT | Repulse Bay Airport, Repulse Bay, Melville Peninsula, NorthWest Territories, Canada |
| YUX | Hall Beach Airport, Hall Beach, NorthWest Territories, Canada |
| YUY | Rouyn-Noranda Airport, Rouyn-Noranda, Quebec, Canada |
| YVA | Moroni, Comoros |
| YVB | Bonaventure, Quebec, Canada |
| YVC | La Ronge Airport, La Ronge, Saskatchewan, Canada |
| YVD | Yeva, Papua New Guinea |