What's a major city in Canada that you can't believe you've never visited??

[Truenorth00]

There are 13 international airports in Canada that the government considers important enough to designate:

(1) As of the date of publication of this AC the following airports have been designated as “International”:

(a) CYYC - YYC Calgary International
(b) CYEG - Edmonton International
(c) CYFC - Fredericton International
(d) CYQX - Gander International
(e) CYHZ - Halifax / Stanfield International
(f) CYQM - Moncton / Greater Moncton Romeo Leblanc International
(g) CYUL - Montreal / Pierre Elliott Trudeau International
(h) CYOW - Ottawa / Macdonald-Cartier International
(i) CYQB - Québec / Jean Lesage International
(j) CYYT - St. John’s International
(k) CYYZ - Toronto / Lester B. Pearson International
(l) CYVR - Vancouver International
(m) CYWG - Winnipeg / James Armstrong Richardson International.

https://tc.canada.ca/en/aviation/ref...-302-032#toc55

From that list, only Gander is there for logistics reasons. Every other city is there because it has sufficient cross-border and transoceanic traffic to consider important enough to have staff on site or on call 24/7. So these are the 12 cities I would consider important in Canada.