When booking through agents, they will tell you the price may vary based on the exchange rate. But when BudgetAir invoice you, they specific indicate "The following products will be charged directly by the charging companies in the following currencies" (CAD in my case), with this statement, I assume if I pay with CAD Credit Card, there will be no exchange happen. Assumption is not reliable. Apparently their charging companies don't always charge you in the currencies as they mentioned, exchange happened and you have to pay for extra amount. When I tried to reach out to their customer service, first they directed to Westjet, after that they told me is my bank's problem... At the end, customer service told me, that their website is based in the States, so there is currency exchange and you can hang up the phone now. I am confused, BudgetAir, you said you will charge me in CAD, what's the point of giving false statement at the first place?