Originally Posted by
aBroadAbroad
Not only effectively, but without any foreign currency fees... CapOne, Chase Sapphire Preferred, Citi Executive AAdvantage all readily come to mind. There is a thread in the credit card forum listing all cards without forex.
Even for SPG points, I would never use an amex overseas (except platinum, of course, which is a whole other ball of wax).
Back on topic, I'm surprised how many people have encountered this in Thailand. Even in PRC, which is notorious for DCC, it's just not something I really have encountered. Guess I just jinxed myself there

I just bought my wife new glasses at a shop in Paragon. 23,000 THB. They automatically charged me in USD (DCC). $718. I told them to reverse it and charge me in THB. Just appeared on my Chase CC statement at $688. More than a 4% difference. People can lose a lot by not watching for this.