Originally Posted by
3Cforme
Further, I had deleted two lines of Canadian GST as I don't know if this would be payable on purchases in Canada for tickets U.S. to U.S., as with a hypothetical Plattsburgh-Miami.
Tax: Canadian Goods and Services Tax C$15.99
Tax: Canadian Goods and Services Tax C$7.35
Pretty safe to do. I've never paid Canadian taxes on U.S.-U.S. flights, or U.S.-Canada flights.
One other tip: If you buy Canada-U.S. tickets OW instead of RT, you save on GST on the return portion (assuming the airline prices Rt as 2 OWs).