English abbreviations from yyy to yzy
- YYY (Mont-Joli Airport)
- YYYY (Four-digit year date)
- YYZ (Toronto Pearson International Airport)
- YZA (Ashcroft Airport)
- YZC (Beatton River Airport)
- YZE (Gore Bay-Manitoulin Airport)
- YZF (Yellowknife Airport)
- YZG (Salluit Airport)
- YZH (Slave Lake Airport)
- YZM (Buchans Airport)
- YZN (Yellow Zinc Dichromate)
- YZP (Sandspit Airport)
- YZR (Sarnia Chris Hadfield Airport)
- YZS (Coral Harbour Airport)
- YZT (Port Hardy Airport)
- YZU (Whitecourt Airport)
- YZV (Sept-Îles Airport)
- YZW (Teslin Airport)
- YZX (CFB Greenwood / Greenwood Airport)
- YZY (Zhangye Ganzhou Airport)