Bacpac:

As your are on a flight originating in Canada, TSA screening procedures do not apply, regardless if your flight overflies part of the USA.

catsa.gc.ca has their own specified lists which also specifically says: The above list includes permitted and non-permitted items for flights originating in Canada.

Complete list of allowed /banned items: What can I bring list

You should contact them directly if you have any questions. In the past, I have found them very friendly and helpful in answering any questions on items that may be prohibited.


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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.

John Lubbock