Flying with "carton" of cigarettes in my carry-on luggage?

Question

I know I can fly with 2 packs because I do this regularily but I have never tried flying with a carton.

I'm flying from Toronto to Mexico for 1 week.

Answer 1

Yes you can.

I fly to Brazil every year and always take 2 cartons with me.

Answer 2

Yes, I know of people who have carried on 2 cartons b/c they didnt want to check them and get them stolen

Answer 3

Yes, at least on the Canadian side. I usually buy a carton of cigarettes at duty free. But I don't know how many cigarettes you can bring into Mexico.