Originally Posted by
dsquared37
If your flight begins in Cambodia they'll price it out in USD etc etc.
And many credit card companies will even charge you a FOREX fee if the charge is in USD, if it originates outside the USA. Doesn't seem fare, but that's what happens.
And watch out for the dreaded DCC scam when you travel outside the USA. Always pay in local currency, beware of helpful companies wanting to charge in USD.