Originally Posted by Majuki

But to the previous poster's point, I think it's a good sign if it lists the exchange rate. From my experience, if you get DCC'd you won't see the exchange rate, just the charge in USD (plus whatever FTF your card has).

For example, back in the dark times before I discovered FlyerTalk, I unknowingly booked air travel on a European carrier denominated in USD. Not only did I have the pleasure of paying about a 4% premium on DCC but I also got hit with a 3% FTF. (I initially thought the 4% discrepancy was the FTF itself, but Chase conveniently tacked that on top of the transaction after it posted.)