Originally Posted by
Happy
The customer does not know. Even an US-based airline would have processed transactions in overseas center. DL has done that - for certain flights, like flights originated from Europe, even purchased on DL website for a DL flight, billed in USD, got charged the foreign transaction fee.
This is kind of messed up. It would be awesome if FT can set up some sort of database about who in what situations would charge forex so that we can look up before deciding on which card to use.