If you are searching for an airfare on either an airlines website search engine or through a larger search engine like Travelocity, always check if they have a search engine operating from another country.

This may not entirely be a currency conversion screw up, but it is possible. It often happens in the search engines. If you are buying a more expensive ticket $1000 or maybe even a $6000 business class ticket it is important to check on other websites.