Matrix - Search
The "sales city" refers to the city in which a ticket will be sold. We will price your trip in the currency of the sales city, unless you explicitly specify a different currency. By default, we assume that the sales city is the same as your journey origin. You may change the sales city to indicate that you plan to purchase tickets in a different city or country. Different fares may apply for different sales cities, especially in different countries. Another way that the sales city may be relevant (for both domestic and international trips) is when advance purchase restrictions apply.
Related: Travel Tips Sites