Originally Posted by
KT550
Try this.
On the payment screen, where it states
Your debit/credit card will now be charged £ xxx.xx (€ 125.44) Click here for more information on our guaranteed exchange rate.
Select "Click here for more information" then untick the check box at the bottom. Price should revert to EUR amount which will be charged to your card.
That works when you are on a non-US Ryanair site - it always offers the option of changing to the correct currency. However, on the US website, it offers fares in USD right from the beginning, so there is no DCC involved (since the fare is in USD to start with). The only way of removing the latter is to switch to a non-US website.
I assume Ryanair have thought that US based customers are more likely to purchase if they can pay in their own currency.